List of top Questions asked in NEET (UG)- 2020

Identify the incorrect statement.

Find the torque about the origin when a force of $3 \,\hat{j}\, N$ acts on a particle whose position vector is $2\, \hat {k}\, m$ .

If 8 g of a non-electrolyte solute is dissolved in 114 g of n-octane to reduce its vapour pressure to 80%, the molar mass (in g mol^-1) of the solute is
[Given that the molar mass of n-octane is 114 g mol^-1.]

Identify the wrong statement with regard to Restriction Enzymes.

Taking into account of the significant figures, what is the value of $9.99 \,m - 0.0099 \,m$ ?

Which of the following is correct about viroids?

Identify the incorrect statement.

Which of the following amine will give the carbylamine test ?

Measuring Zeta potential is useful in determiningwhich property of colloidal solution ?

The freezing point depression constant (\(K_f \)) of benzene is \(5.12 K\ kg\ mol^{−1}\). The freezing point depression for the solution of molality \(0.078\ m\) containing a non-electrolyte solute in benzene is (rounded off upto two decimal places) :

An alkene on ozonolysis gives methanal as one of the product. Its structure is :

Paper chromatography is an example of :

The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals.

Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :

For the reaction, \(2Cl(g) → Cl_2 (g)\), the correct option is :

Match the following and identify the correct option

A	\(CO(g)+H_2 (g)\)	I	\(Mg(HCO_3 )_2+ Ca(HCO_3 )_2\)
B	Temporary hardness of water	II	An electron deficient hydride
C	\(B_2H_6\)	III	Synthesis gas
D	\(H_2O_2\)	IV	Non-planar structure

Identify the correct statement from the following :

Identify compound \(X\) in the following sequence of reactions :

Elimination reaction of 2-Bromo pentane to form pent-2-ene is :

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds ?

Identify the incorrect match.

Name		IUPAC Official Name
A	Unnilunium	I	Mendelevium
B	Unniltrium	II	Lawrencium
C	Unnilhexium	III	Seaborgium
D	Unununnium	IV	Darmstadtium

Which of the following is not correct about carbonmonoxide ?

If the distance between two consecutive base pairs is 0.34nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6 \times 10^9$ bp, then the length of the DNA is approximately:

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells ?

Which of the following statements is correct?