TS POLYCET 2024 Question Paper: Download Set A Question Paper with Answer Key PDF

Question 1:

The expression \((6 + 5\sqrt{3}) - (4 - 3\sqrt{3})\) is:

• (1) Rational number
• (2) Irrational number
• (3) Natural number
• (4) None of the above

Which of the following rational number has terminating decimal?

• (1) \(\frac{7}{250}\)
• (2) \(\frac{16}{225}\)
• (3) \(\frac{5}{18}\)
• (4) \(\frac{2}{21}\)

H.C.F. of 2023, 2024, 2025 is:

• (1) 2024
• (2) 2023
• (3) 0
• (4) 1

The value of \(\log_6 2 + \log_6 3\) is:

• (1) 0
• (2) 1
• (3) 2
• (4) 3

Exponential form of \(\log_b a = c\) is:

• (1) \(b^a = c\)
• (2) \(a^c = b\)
• (3) \(a^b = c\)
• (4) \(b^c = a\)

The product of prime factors of 2024 is:

• (1) \(11 \times 23 \times 32\)
• (2) \(23 \times 11 \times 23^3\)
• (3) \(7 \times 23 \times 23^2\)
• (4) \(23 \times 11^2 \times 22^2\)

Which of the following two sets are equal sets?

• (1) \(A = \{5, 6\}, B = \{5\}\)
• (2) \(A = \{5, 6\}, B = \{5, 6, 7\}\)
• (3) \(A = \{5, 6, 7\}, B = \{7, 5, 6\}\)
• (4) \(A = \{5, 6, 8\}, B = \{5, 6, 7\}\)

\(\{0\}\) is a set which has ........ elements.

• (1) 0
• (2) 1
• (3) 3
• (4) 4

If \(P(x) = 11x^8 - 5x^6 + 4x^4 - 7x^2 + 6\), then the degree of \(P(x)\) is

• (1) 8
• (2) 6
• (3) 4
• (4) 2

If -1, -2 are two zeros of a polynomial \(2x^3 + ax^2 + bx - 2\), then the values of \(a\) and \(b\) are

• (1) 2, -1
• (2) -5, -1
• (3) 5, 1
• (4) -2, -1

If \(\alpha, \beta\) are the zeros of the polynomial \(P(x) = 3x^2 - x - 4\), then \(\alpha \times \beta =\)

• (1) \(-\frac{4}{3}\)
• (2) \(\frac{4}{3}\)
• (3) \(-\frac{1}{3}\)
• (4) \(\frac{1}{3}\)

Which of the following equation represents the situation where Kiran bought 5 oranges, 7 apples, and Harish bought 2 oranges, 12 apples for the same amount of total money?

• (1) \(5x + 12y = 2x + 7y\)
• (2) \(5x + 7y = 2x + 12y\)
• (3) \(5x - 7y = 2x - 12y\)
• (4) \(5x + 2y = 7x + 12y\)

If \(\frac{2}{\sqrt{x}} = 2\) and \(\frac{4}{\sqrt{y}} = -1\), then

• (1) \(x = 4\), \(y = 3\)
• (2) \(x = 2\), \(y = 9\)
• (3) \(x = 4\), \(y = 9\)
• (4) \(x = 2\), \(y = 3\)

The pair of equations \(x + y = 5\) and \(2x + 2y = k\) has infinitely many solutions if \(k =\)

• (1) 4
• (2) 6
• (3) 8
• (4) 10

If \(\frac{a_1}{a_2} \neq \frac{b_1}{b_2}\), where \(a_1x + b_1y + c_1 = 0\) and \(a_2x + b_2y + c_2 = 0\) are two linear equations, then the equations

• (1) have a unique solution
• (2) have infinitely many solutions
• (3) have finite solutions
• (4) have no solution

The value of \(p\), for which the pair of equations \(3x + 4y + 2 = 0\) and \(9x + py + 8 = 0\) represents parallel lines, is:

• (1) 2
• (2) 4
• (3) 6
• (4) 12

The roots of the quadratic equation \(x^2 - 4x + 4 = 0\) are:

• (1) 4, 1
• (2) 2, 2
• (3) -2, -2
• (4) 4, 2

The sum of the roots of the quadratic equation \(3x^2 - 5x + 2 = 0\) is:

• (1) \(\frac{5}{3}\)
• (2) \(-\frac{5}{3}\)
• (3) \(-\frac{3}{5}\)
• (4) \(\frac{3}{5}\)

Sum of the areas of two squares is 625 m\(^2\). If the difference of their perimeters is 20 m, find the sides of the two squares.

• (1) 20 m, 5 m
• (2) 15 m, 10 m
• (3) 20 m, 15 m
• (4) 25 m, 5 m

The discriminant of the quadratic equation \(3x^2 - 2x + \frac{1}{3} = 0\) is:

• (1) 32
• (2) 16
• (3) 0
• (4) 1

Which term of the A.P.: \(20, 18, 16, \dots\) is \(-80\)?

• (1) 50
• (2) 51
• (3) 52
• (4) 53

How many two-digit numbers are divisible by 3?

• (1) 25
• (2) 28
• (3) 30
• (4) 36

In a G.P. the 3rd term is 24 and 6th is 192, then the 10th term is:

• (1) 2072
• (2) 3072
• (3) 1072
• (4) 1672

The common ratio of G.P.: \(25, -5, 1, -\frac{1}{5}, \dots\) is:

• (1) \(-\frac{1}{5}\)
• (2) \(\frac{1}{5}\)
• (3) \(2 \, \frac{5}{5}\)
• (4) \(\frac{3}{5}\)

The distance between the points \((x_1, y_1)\) and \((x_2, y_2)\) is:

• (1) \(\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\)
• (2) \(\sqrt{(x_2 + x_1)^2 + (y_2 + y_1)^2}\)
• (3) \(\sqrt{(x_2 - x_1)^2 - (y_2 - y_1)^2}\)
• (4) \(\sqrt{(x_2 + x_1)^2 - (y_2 + y_1)^2}\)

The coordinates of the point which divides the line segment joining the points \((4, -3)\) and \((8, 5)\) in the ratio 3:1 internally is:

• (1) (3, 7)
• (2) (7, 3)
• (3) (-7, -3)
• (4) (-3, -7)

The centroid of the triangle with vertices \((1, -1)\), \((0, 6)\), and \((-3, 0)\) is:

• (1) \(\left(\frac{2}{3}, \frac{5}{3}\right)\)
• (2) \(\left(\frac{-2}{3}, \frac{-5}{3}\right)\)
• (3) \(\left(\frac{-2}{3}, \frac{5}{3}\right)\)
• (4) \(\left(\frac{2}{3}, \frac{-5}{3}\right)\)

Area of the triangle formed by the points \((-5, -1)\), \((3, -5)\) and \((5, 2)\) is:

• (1) 32
• (2) 22
• (3) 42
• (4) 52

In \(\triangle ABC\), if \(DE \parallel BC\), \(AE/CE = 3/5\) and \(AB = 5.6\) cm, then \(AD =\):
  (1) 2.8 cm

• (2) 2.1 cm
• (3) 3 cm
• (4) 2.4 cm

In \(\triangle ABC\), if \(DE \parallel BC\), \(AD = x\), \(DB = x - 2\), \(AE = x + 2\), and \(EC = x - 1\), then the value of \(x\) is:
   (1) 3

• (2) 2
• (3) 1
• (4) 4

A girl of height 90 cm is walking away from the base of a lamp post at a speed of 120 cm/sec. If the lamp post is 360 cm above the ground, then the length of her shadow after 4 seconds is:

• (1) 90 cm
• (2) 120 cm
• (3) 160 cm
• (4) 180 cm

If the ratio of corresponding sides of two similar triangles is 2:3, then the ratio of areas of these triangles is:

• (1) 2 : 3
• (2) \(\sqrt{2} : \sqrt{3}\)
• (3) 4 : 9
• (4) 16 : 81

If \(\triangle ABC\) is a right triangle right angled at \(C\) and let \(BC = a\), \(CA = b\), \(AB = c\) and let \(p\) be the length of perpendicular from \(C\) on \(AB\), then:

• (1) \(cp = ab\)
• (2) \(\frac{1}{p^2} = \frac{1}{a^2} + \frac{1}{b^2}\)
• (3) \(a^2 + b^2 = p^2\)
• (4) None

If the areas of two similar triangles are 81 cm\(^2\) and 49 cm\(^2\) respectively. If the altitude of the smaller triangle is 3.5 cm, then the corresponding altitude of the bigger triangle is:

• (1) 9.5 cm
• (2) 9 cm
• (3) 7 cm
• (4) 4.5 cm

A tangent to a circle touches it in _____ point(s).

• (1) one
• (2) two
• (3) three
• (4) infinite

There are exactly _____ tangents to a circle through a point outside the circle.

• (1) two
• (2) three
• (3) infinite
• (4) None

The length of the tangent from a point 15 cm away from the centre of a circle of radius 9 cm is:

• (1) 15 cm
• (2) 13 cm
• (3) 11 cm
• (4) 12 cm

If \(AP\) and \(AQ\) are the two tangents to a circle with center \(O\), such that \(\angle POQ = 110^\circ\), then \(\angle PAQ =\):
  (1) 60°

• (2) 70°
• (3) 80°
• (4) 90°

If two concentric circles of radii 5 cm and 3 cm are drawn, then the length of the chord of the larger circle which touches the smaller circle is:

• (1) 4 cm
• (2) 6 cm
• (3) 8 cm
• (4) 10 cm

The area of a sector, whose radius is 7 cm with the angle 72° is:

• (1) 38 cm\(^2\)
• (2) 30.8 cm\(^2\)
• (3) 28.8 cm\(^2\)
• (4) 57 cm\(^2\)

If a right circular cylinder has base radius 14 cm and height 21 cm, then its curved surface area is:

• (1) 924 cm\(^2\)
• (2) 2772 cm\(^2\)
• (3) 3080 cm\(^2\)
• (4) 1848 cm\(^2\)

The volume of a right circular cone with radius 6 cm and height 7 cm is:

(use \(\pi = \frac{22}{7}\))

• (1) 264 cm\(^3\)
• (2) 792 cm\(^3\)
• (3) 301 cm\(^3\)
• (4) 616 cm\(^3\)

If a cylinder and a cone have bases of equal radii and are of equal heights, then their volumes are in the ratio of:

• (1) 1 : 2
• (2) 2 : 3
• (3) 3 : 1
• (4) 1 : 4

If two cubes each of volume 64 cm\(^3\) are joined end to end together, then the surface area of the resulting cuboid is:

• (1) 128 cm\(^2\)
• (2) 160 cm\(^2\)
• (3) 192 cm\(^2\)
• (4) 384 cm\(^2\)

The value of \(\sin^2 15^\circ + \cos^2 15^\circ\) is:

• (1) 0
• (2) 1
• (3) \(\frac{1}{2}\)
• (4) \(\frac{1}{\sqrt{2}}\)

A chord of a circle of radius 4 cm is making an angle 60° at the centre, then the length of the chord is:

• (1) 1 cm
• (2) 2 cm
• (3) 3 cm
• (4) 4 cm

If \(\csc \theta + \cot \theta = k\), then the value of \(\csc \theta\) is:

• (1) \(\frac{k^2 + 1}{2k}\)
• (2) 0
• (3) \(\frac{k^2 - 1}{k^2 + 1}\)
• (4) \(\frac{1}{k}\)

If \(A\), \(B\), and \(C\) are interior angles of triangle \(ABC\), then the value of \(\cos \left( \frac{A + B}{2} \right)\) is:

• (1) \(\cos \left( \frac{A - B}{2} \right)\)
• (2) \(\sin \left( \frac{A + B}{2} \right)\)
• (3) \(\sin \left( \frac{C}{2} \right)\)
• (4) \(\cos \left( \frac{B}{2} \right)\)

The value of \(\cos 54^\circ \cos 36^\circ - \sin 54^\circ \sin 36^\circ\) is:

• (1) 0
• (2) 1
• (3) \(\frac{\sqrt{3}}{2}\)
• (4) \(\frac{1}{\sqrt{2}}\)

A boy observed the top of an electric pole at an angle of elevation of \(60^\circ\) when the observation point is 6 meters away from the foot of the pole, then the height of the pole is:

• (1) 6 m
• (2) \(6\sqrt{2}\) m
• (3) \(6\sqrt{3}\) m
• (4) \(6/\sqrt{3}\) m

From a helicopter, a person observes an object on the ground at an angle of depression of \(30^\circ\). If the helicopter is flying at a height of 500 m from the ground, then the distance between the person and the object is:

• (1) 500 m
• (2) 1000 m
• (3) \(500\sqrt{2}\) m
• (4) \(500/\sqrt{3}\) m

Two boys on either side of a temple of 45 meters height observe its top at the angles of elevation 30° and 60° respectively. Find the distance between the two boys.

• (1) \(60\sqrt{3}\) m
• (2) \(40\sqrt{3}\) m
• (3) \(60/\sqrt{3}\) m
• (4) \(40/\sqrt{3}\) m

Two dice are thrown at the same time. What is the probability that the sum of the two numbers appearing on the top of the dice is 13?

• (1) 1
• (2) \(\frac{1}{2}\)
• (3) \(\frac{2}{3}\)
• (4) 0

One card is selected from a well-shuffled deck of 52 cards, the probability of getting the queen of diamonds is:

• (1) \(\frac{1}{52}\)
• (2) \(\frac{3}{26}\)
• (3) \(\frac{1}{26}\)
• (4) \(\frac{1}{13}\)

A Kiddy bank contains hundred 50 paise coins, fifty ₹1 coins, twenty ₹2 coins, and ten ₹5 coins. If one of the coins will fall out when the bank is turned upside down, what is the probability that the coin is a ₹5 coin?

• (1) \(\frac{5}{9}\)
• (2) \(\frac{5}{18}\)
• (3) \(\frac{1}{9}\)
• (4) \(\frac{1}{18}\)

Rainfall of a town in a week is 4 cm, 5 cm, 12 cm, 3 cm, 6 cm, 8 cm, and 4 cm, then the average rainfall per day is:

• (1) 4 cm
• (2) 5 cm
• (3) 6 cm
• (4) 7 cm

Which of the following is not a formula for arithmetic mean?

• (1) \(\frac{\sum f_i x_i}{\sum f_i}\)
• (2) \(a + \frac{\sum f_i d_i}{\sum f_i}\)
• (3) \(a + \left[ \frac{\sum f_i \mu_i}{\sum f_i} \right] \times h\)
• (4) \(l + \frac{f_1 - f_0}{2f_1 - f_0 - f_2} \times h\)

Mode of the data 9, 10, 19, 7, 11, 5, 6, 7, 8, 14, 10, 7, 6 is

• (1) 6
• (2) 7
• (3) 10
• (4) 19

In a grouped frequency distribution, the formula to find median is

• (1) \(1 + \frac{n}{2} - cf \div f \times h\)
• (2) \(1 - \frac{n}{2} + cf \div f \times h\)
• (3) \(1 + \frac{n}{2} - cf \div f \times h\)
• (4) \(1 - \frac{n}{2} - cf \div f \times h\)

The median of 75, 21, 56, 36, 81, 05, and 42 is

• (1) 36
• (2) 42
• (3) 56
• (4) 21

Convex mirror is used as

• (1) Focussing mirror
• (2) Shaving mirror
• (3) Rear view mirror in automobiles
• (4) Dentist mirror

Concave mirrors can produce

• (1) Only virtual
• (2) Only real
• (3) Both real and virtual
• (4) None

The mirror which always gives diminished image is

• (1) Plano convex
• (2) Convex mirror
• (3) Concave mirror
• (4) Plane mirror

The focal length of a concave mirror is 20 cm. At what distance the object is placed to obtain the virtual image?

• (1) Less than 20 cm
• (2) At 20 cm
• (3) More than 20 cm
• (4) None

The midpoint of a thin lens is called

• (1) Optic center
• (2) Principal axis
• (3) Focal point
• (4) Centre of curvature

A light ray passing along the principal axis of a lens is

• (1) Deviated
• (2) Reflected
• (3) Refracted
• (4) Undeviated

In which one among the following cases the convex lens does not give a real image?

• (1) When the object is between focal point and optic centre
• (2) When the object is beyond the centre of curvature
• (3) When the object is between the centre of curvature and focal point
• (4) None

A convex lens kept in a medium with refractive index less than the refractive index of the lens behaves like

• (1) Diverging lens
• (2) Converging lens
• (3) Plane mirror
• (4) Concave mirror

The focal length of double concave lens having refractive index 1.5 kept in air with two spherical surfaces of radii \( R_1 = 20 \, cm \) and \( R_2 = 80 \, cm \) is

• (1) 16 cm
• (2) 24 cm
• (3) 32 cm
• (4) 48 cm

The formula for refractive index of a prism is

• (1) \( \frac{\sin \left( \frac{A}{2} \right)}{\sin \left( \frac{A+D}{2} \right)} \)
• (2) \( n = \frac{\sin \left( \frac{D}{2} \right)}{\sin \left( \frac{A}{2} \right)} \)
• (3) \( n = \frac{\sin \left( \frac{A+D}{2} \right)}{\sin \left( \frac{A}{2} \right)} \)
• (4) \( n = \frac{\sin (A+D)}{\sin (A)} \)

The least distance of distinct vision of a healthy person is

• (1) 25 mm
• (2) 25 cm
• (3) 25 m
• (4) 25 km

The focal length of a lens having power 4D is

• (1) 5 cm
• (2) 15 cm
• (3) 10 cm
• (4) 25 cm

The defect in eye vision that people cannot see objects at long distance is

• (1) Hypermetropia
• (2) Presbyopia
• (3) Myopia
• (4) None

The process of an eye lens to adjust its focal length to form a sharp image on retina is called

• (1) Distinct vision
• (2) Accommodation
• (3) Cornea
• (4) Pupil

The appearance of red colour of the Sun during Sunrise and Sunset is due to

• (1) Dispersion of light
• (2) Scattering of light
• (3) Total internal reflection
• (4) None

The S.I. unit of electrical resistance is

• (1) Ampere
• (2) Volt
• (3) Farad
• (4) Ohm

Formula for specific resistance is

• (1) \( \rho = \frac{RA}{L} \)
• (2) \( \rho = \frac{LA}{R} \)
• (3) \( \rho = \frac{IR}{L} \)
• (4) \( \rho = \frac{RL}{A} \)

The current in a conductor is directly proportional to the potential difference between its ends at constant temperature. This is known as

• (1) Faraday's law
• (2) Kirchhoff's law
• (3) Ohm's law
• (4) Newton's law

Kirchhoff's junction law is based on conservation of

• (1) Energy
• (2) Momentum
• (3) Charge
• (4) Angular momentum

Calculate the resultant resistance in the following circuit.

• (1) 3 \(\Omega\)
• (2) 10 \(\Omega\)
• (3) 13 \(\Omega\)
• (4) 7 \(\Omega\)

The instrument to measure potential difference is

• (1) Ammeter
• (2) Voltmeter
• (3) Galvanometer
• (4) Wattmeter

The tangent drawn to the magnetic field line at a point gives

• (1) magnetic flux
• (2) current
• (3) direction of the magnetic field
• (4) charge

The magnetic flux passing through unit area taken perpendicular to the uniform magnetic field is called

• (1) Magnetic flux density
• (2) Magnetic flux
• (3) Magnetic field
• (4) Induced electromotive force

The direction of the magnetic field lines outside the current carrying solenoid is from

• (1) South to North
• (2) North to South
• (3) East to West
• (4) West to East

In electric motors

• (1) Electrical energy is converted into mechanical energy
• (2) Mechanical energy is converted into electrical energy
• (3) Electrical energy is converted into light energy
• (4) Mechanical energy is converted into light energy

Which law states "the induced current set up in the coil is in such a direction that it opposes the changes in the flux"?

• (1) Kirchhoff's law
• (2) Lenz's law
• (3) Coulomb's law
• (4) Ohm's law

Induction stove works on the principle of

• (1) Magnetic induction
• (2) Electrostatic induction
• (3) Electromagnetic induction
• (4) Electric shock

A conductor of length 'l' is moving perpendicular to magnetic field 'B' with a speed 'v'. The motional emf is given by -

• (1) Blv
• (2) Bv2l
• (3) \frac{B}{v}
• (4) \frac{Bl}{v}

The magnetic force exerted on a 3 m length conductor carrying 2A current when placed in a uniform magnetic field 0.4 T at an angle 30° is

• (1) 12 N
• (2) 1.2 N
• (3) 2.4 N
• (4) 24 N

Which one of the following statements is correct?

• (1) AC changes its magnitude but not direction
• (2) DC changes its magnitude and direction
• (3) DC changes its direction only
• (4) AC changes both its magnitude and direction

What is the symbol used in a chemical equation to represent the gas evolved in a reaction?

• (1) \(\rightarrow\)
• (2) \(\leftarrow\)
• (3) \(\uparrow\)
• (4) \(\downarrow\)

Volume occupied by 10 g of hydrogen at STP in litres is

• (1) 224
• (2) 112
• (3) 56
• (4) 22.4

Quantum mechanical model of the atom was developed by

• (1) Neils Bohr
• (2) Sommerfeld
• (3) Erwin Schrodinger
• (4) Rutherford

Maximum no. of electrons in a subshell is equal to

• (1) \(2n^2\)
• (2) \(n^2\)
• (3) \(2(2l + 1)\)
• (4) \(2l + 1\)

Number of unpaired electrons present in carbon atom is

• (1) 6
• (2) 4
• (3) 3
• (4) 2

Law of octaves was proposed by

• (1) Dobereiner
• (2) Moseley
• (3) Mendeleev
• (4) Newlands

Number of elements present in the sixth period of the modern periodic table

• (1) 32
• (2) 8
• (3) 18
• (4) 19

Which one of the following atoms is smaller in size?

• (1) F
• (2) O
• (3) N
• (4) C

Ionization energy along a period from left to right generally

• (1) increases
• (2) decreases
• (3) remains same
• (4) none of the above

Element with atomic number 17 belongs to

• (1) VI A group, 2nd period
• (2) VII A group, 2nd period
• (3) VI A group, 3rd period
• (4) VII A group, 3rd period

Oxygen gains ____ electrons during the chemical changes.

• (1) 1
• (2) 2
• (3) 3
• (4) 4

Number of bond pairs and lone pairs in the valence shell of nitrogen in NH\(_3\)

• (1) 2, 2
• (2) 1, 3
• (3) 3, 1
• (4) 4, 0

Bond angle in BeCl\(_2\) molecule is

• (1) 120\(^\circ\)
• (2) 180\(^\circ\)
• (3) 109\(^\circ\) 28'
• (4) 107\(^\circ\) 48'

Ionic bond is formed due to transfer of electrons from

• (1) metal atom to non-metal atom
• (2) non-metal atom to metal atom
• (3) non-metal atom to non-metal atom
• (4) metal atom to metal atom

Polar covalent bond present in

• (1) NaCl
• (2) N\(_2\)
• (3) Na\(_2\)O
• (4) HCl

Double bond present in

• (1) H\(_2\)
• (2) HCl
• (3) N\(_2\)
• (4) O\(_2\)

The colour of methyl orange indicator in basic solution is

• (1) Yellow
• (2) Green
• (3) Orange
• (4) Red

The reaction of an acid with a base to give a salt and water is known as

• (1) Oxidation
• (2) Reduction
• (3) Neutralization
• (4) Combustion

Which one of the following is used for disinfecting drinking water?

• (1) Baking soda
• (2) Bleaching powder
• (3) Washing soda
• (4) Plaster of paris

The process of dissolving acid or base in water is

• (1) Exothermic process
• (2) Endothermic process
• (3) Neutralisation
• (4) None of the above

The metal that occurs in the free form (native) is

• (1) Pb
• (2) Au
• (3) Fe
• (4) Hg

Galena is an ore of

• (1) Al
• (2) Pb
• (3) Hg
• (4) Zn

In smelting the ore it is

• (1) Oxidized
• (2) Neutralized
• (3) Reduced
• (4) None of these

The hydrocarbons containing only single bonds between carbon atoms are called

• (1) Alkanes
• (2) Alkenes
• (3) Alkynes
• (4) Benzene

Which one of the following is a ketone?

• (1) CH3–C–CH3
• (2) CH3–O–CH3
• (3) CH3–CH2OH
• (4) CH3–CHO

If the hydrogen atom of -COOH gets replaced by 'R' (alkyl group) ___ are obtained.

• (1) Acids
• (2) Esters
• (3) Ketones
• (4) Amines

The number of sigma and \(\pi\)-bonds in ethyne molecule:

• (1) 1 sigma, 1 \(\pi\)
• (2) 2 sigma, 2 \(\pi\)
• (3) 2 sigma, 1 \(\pi\)
• (4) 3 sigma, 2 \(\pi\)

The process of conversion of starches and sugars to C2H5OH is called

• (1) Combustion
• (2) Hydrolysis
• (3) Fermentation
• (4) Esterification

Which of the following is an unsaturated compound?

• (1) CH4
• (2) CH3 - CH3
• (3) CH3 - CH = CH2
• (4) CH3 - CH2 - CH3

The final compound formed when methane reacts with chlorine in the presence of sunlight is

• (1) CH3Cl
• (2) CH2Cl2
• (3) CHCl3
• (4) CCl4

Which test is performed to identify the presence of starch in leaves?

• (1) Picric acid test
• (2) Iodine test
• (3) Nessler's test
• (4) None of the above

In the mouth, the crushed food mixed with saliva which forms a slippery lump is called?

• (1) Bolus
• (2) Chyme
• (3) Peptones
• (4) None of the above

Which of the following statement is true?

• (1) Chlorophyll 'a' is bluish green in colour and Chlorophyll 'b' is yellowish green in colour
• (2) Chlorophyll 'a' is black in colour and Chlorophyll 'b' is grey in colour
• (3) Chlorophyll 'a' is yellowish green in colour and Chlorophyll 'b' is bluish green in colour
• (4) Both Chlorophyll 'a' and Chlorophyll 'b' are white in colour

Choose the correct sequence of steps in Respiration.

• (1) Breathing \(\to\) Gaseous exchange at lungs level \(\to\) Gas transport by blood \(\to\) Gaseous exchange at tissue level \(\to\) Cellular Respiration
• (2) Breathing \(\to\) Gas transport by blood \(\to\) Gaseous exchange at lungs level \(\to\) Gaseous exchange at tissue level \(\to\) Cellular Respiration
• (3) Gaseous exchange at lungs level \(\to\) Breathing \(\to\) Gas transport by blood \(\to\) Gaseous exchange at tissue level \(\to\) Cellular Respiration
• (4) Cellular Respiration \(\to\) Gaseous exchange at lungs level \(\to\) Gas transport by blood \(\to\) Gaseous exchange at tissue level \(\to\) Breathing

Each ATP molecule gives how much energy?

• (1) 8700 calories
• (2) 10800 calories
• (3) 7200 calories
• (4) 10000 calories

C\(_6\)H\(_{12}\)O\(_6\) + 6O\(_2\) \(\to\) 6CO\(_2\) + 6H\(_2\)O + \text{Energy. This equation summarizes which process?

• (1) Excretion
• (2) Respiration
• (3) Photosynthesis
• (4) Digestion

The yellowish straw colored fluid portion that forms after the blood clot is called

• (1) Plasma
• (2) Fibrin
• (3) Serum
• (4) Thrombin

What is the name of the valve present on the right Auriculo-Ventricular septum between right atrium and right ventricle called?

• (1) Tricuspid valve
• (2) Bicuspid valve
• (3) Mitral valve
• (4) Pulmonary valve

Regarding blood pressure, what is the systolic pressure in a healthy young adult?

• (1) 80 mm of Hg
• (2) 100 mm of Hg
• (3) 120 mm of Hg
• (4) 20 mm of Hg

Evaporation of water through leaves is called?

• (1) Respiration
• (2) Transpiration
• (3) Transportation
• (4) Circulation

Deficiency of Vasopressin causes excessive dilute urination. This condition is called?

• (1) Diabetes mellitus
• (2) Diabetes insipidus
• (3) Scurvy
• (4) Beri beri

The maximum urine storage capacity of urinary bladder is?

• (1) 2000-3000 ml
• (2) 50-100 ml
• (3) 10000-20000 ml
• (4) 700-800 ml

Kidneys are the excretory organs in which animals?

• (1) Amoeba
• (2) Sponges
• (3) Birds
• (4) Earthworm

Which of the following poisonous, nitrogenous byproducts are stored in different parts of the plants?

• (1) Tannins
• (2) Resins
• (3) Alkaloids
• (4) Latex

.............. is an endocrine gland, secretes the hormones insulin and glucagon.

• (1) Thyroid
• (2) Adrenal
• (3) Ovary
• (4) Pancreas

................ causes ripening of fruits.

• (1) Ethylene
• (2) Auxins
• (3) Cytokinins
• (4) Gibberellins

Roots grow downwards, plants respond positively for gravitational force. What is this called?

• (1) Phototropism
• (2) Geotropism
• (3) Hydrotropism

........... bacteria is responsible for the formation of curd from milk.

• (1) Bacillus thuringiensis
• (2) Lactobacillus
• (3) Pseudomonas

Examples of propagation by stem are:

• (1) Stolons and runners
• (2) Bulbs and corms
• (3) Rhizome and tuber

Majority of flowering plants have an embryo sac consisting of:

• (1) 7 cells and 8 nuclei
• (2) 8 cells and 8 nuclei
• (3) 7 cells and 7 nuclei

The correct order of passage of spermatozoa is:

• (1) Seminiferous tubules \(\to\) Vasa efferentia \(\to\) Epididymis \(\to\) Ejaculatory duct \(\to\) Urethra
• (2) Seminiferous tubules \(\to\) Epididymis \(\to\) Vasa efferentia \(\to\) Ejaculatory duct \(\to\) Urethra
• (3) Seminiferous tubules \(\to\) Ejaculatory duct \(\to\) Vasa efferentia \(\to\) Epididymis

The walls of the food pipe secrete a slippery substance called:

• (1) Amylase
• (2) Lipase
• (3) Mucus

From the stomach, the partially digested food (chyme) is released into:

• (1) Duodenum
• (2) Large intestine
• (3) Small intestine

The phenotypic ratio of F2 generation in a monohybrid cross is:

• (1) 1:2:1
• (2) 3:1
• (3) 9:3:3:1

The number of allosomes in human cells are:

• (1) 2
• (2) 4
• (3) 23

Change in the frequency of genes in small populations is called:

• (1) Variation
• (2) Mutation
• (3) Genetic drift

Occurrence of vestigial organs abruptly in human beings is called:

• (1) Atavism
• (2) Dwarfism
• (3) Regeneration

The process of entry of pollutants into a food chain is known as:

• (1) Restoration
• (2) Bioaccumulation
• (3) Biomagnification

Seeds from .......... plants are used for the production of biofuel.

• (1) Jatropha
• (2) Chrysanthemum
• (3) Hibiscus

Coal, Petroleum (oil), and Natural Gas belong to which type of fuels?

• (1) Chemical fuels
• (2) Bio fuels
• (3) Sunlight