List of top Questions asked in KCET, JIPMER

For the reaction $Fe_2O_3 +3CO \rightarrow 2Fe + 3CO_2$ the volume of carbon monoxide required to reduce one mole of ferric oxide is
The masses of two radioactive substances are same and their half lives are $1$ year and $2$ years respectively. The ratio of their activities after 6 years will be
The perimeter of a certain sector of a circle is equal to the length of the arc of the semicircle. Then the angle at the centre of the sector in radians is
A small conducting sphere of radius $r$ is lying concentrically inside a bigger hollow conducting sphere of radius $R$. The bigger and smaller spheres are charged with $Q$ and $q (Q > q)$ and are insulated from each other. The potential difference between the spheres will be
Rapid increase in the blood sugar level of a patient can be immediately reduced by
A ray of light enters from a rarer to a denser medium. The angle of incidence is $i$. Then the reflected and refracted rays are mutually perpendicular to each other. The critical angle for the pair of media is
The tangents drawn at the extremeties of a focal chord of the parabola $y^2 = 16 x$
The point $(5, - 7)$ lies outside the circle
The equation to the normal to the hyperbola $\frac {x^2}{16}- \frac {y^2}{9}=1$ at $(-4,0)$ is
A gas deviates from ideal behaviour at a high pressure because its molecules
The monomers of buna-$S$ rubber are
Mesomeric effect involves delocalisation of
The calculated bond order of superoxide ion $(O_2^- )$ is
Which of the following electrolytic solutions has the least specific conductance ?
$_{92}U^{235}$ undergoes successive disintegrations with the end product of $_{82}Pb^{203}$.The number of $\alpha$ and $\beta$ particles emitted are
A body of mass $4\, kg$ is accelerated upon by a constant force, travels a distance of $5\,m$ in the first second and a distance of $2\,m$ in the third second. The force acting on the body is
A mass of $10\,kg$ is suspended from a spring balance. It is pulled aside by a horizontal string so that it makes an angle of $60^\circ$ with the vertical. The new reading of the balance is
Two identical metal spheres charged with $+12 \mu F$ and $-8 \mu F$ are kept at certain distance in air. They are brought into contact and then kept at the same distance. The ratio of the magnitudes of electrostatic forces between them before and after contact is
Figure shows a mixture of blue, green and red coloured rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are $46^\circ$, $44^\circ$ and $43^\circ$ respectively. The arrangement will separate
$80\,g$ of oxygen contains as many atoms as in
$10 \,cm^3$ of $0.1\, N$ monobasic acid requires $15 \,cm^3$ of sodium hydroxide solution whose normality is
Which of the following species does not exert a resonance effect ?
Malleability and ductility of metals can be accounted due to
Which of the following can be measured by the Ostwald-Walker dynamic method ?
Which is the most easily liquifiable rare gas ?