List of top Chemistry Questions asked in NEET (UG)

Consider the reactions :- Identify $A, X, Y$ and $Z$

Which one is the most acidic compound ?

It is because of inability of $ns^{2}$ electrons of the valence shell to participate in bonding that:-

Which of the following is a sink for $CO$ ?

Mechanism of a hypothetical reaction $X _{2}+ Y _{2} \rightarrow 2 XY$ is given below: (i) $X_{2} \rightarrow X+X$ (fast) (ii) $X + Y _{2} \rightleftharpoons XY + Y$ ( slow ) (iii) $X + Y \rightarrow XY$ (fast) The overall order of the reaction will be

Name the gas that can readily decolourise acidified $KMnO_4$ solution :

Predict the correct intermediate and product in the following reaction :
$H_{3}C-C\equiv CH\underset{HgS{O}_4}{\overset{H_{2}O,H_{2}S{O}_4}{\to }}\underset{\text{(A)}}{\mathrm{Intermediate}}\to \underset{\text{(B)}}{\mathrm{product}}$

The element $Z = 114$ has been discovered recently. It will belong to which of the following family/group and electronic configuration ?

Pick out the correct statement with respect to $[Mn(CN)_6]^{3-}$ :

With respect to the conformers of ethane, which of the following statements is true?

Which of the following pairs of compounds is isoelectronic and isostructural ?

HgCl₂ and I₂ both when dissolved in water containing I^– ions the pair of species formed is

Mixture of chloroxylenol and terpineol acts as

Which is the incorrect statement?

Concentration of the Ag⁺ ions in a saturated solution of Ag₂C₂O₄ is 2.2 × 10^–4 mol L^–1. Solubility product of Ag₂C₂O₄ is

Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

The species, having bond angles of 120° is

If molality of the dilute solution is doubled, the value of molal depression constant (K_f) will be

Which one is the most acidic compound?

It is because of inability of ns² electrons of the valence shell to participate in bonding that

Predict the correct intermediate and product in the following reaction.

Which one of the following statements is not correct?

Which one is the wrong statement?

A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 atm from an initial volume of 2.50 L to a final volume of 4.50 L. The change in internal energy △U of the gas in joules will be

Consider the reactions :

Identify A,X,Y and Z.