NEET 2020 Exam Paper (180 Q) - Mock Test

Identify a molecule which does not exist.

Find out the solubility of $\text{Ni}(\text{OH}{)}_2$ in $0.1\text{M NaOH}$. Given that the ionic product of $\text{Ni}(\text{OH}{)}_2$ is $2\times 10^{-15}$.

Identify the correct statements from the following:(a) ${\text{CO}}_2(g)$ is used as refrigerant for ice-cream and frozen food.(b) The structure of ${\text{C}}_{60}$ contains twelve six carbon rings and twenty five carbon rings.(c) $\text{ZSM-5}$, a type of zeolite, is used to convert alcohols into gasoline.(d) $\text{CO}$ is colorless and odourless gas.

Hydrolysis of sucrose is given by the following reaction:
$$\text{Sucrose}+{\text{H}}_2\text{O}\rightleftharpoons \text{Glucose}+\text{Fructose}$$
If the equilibrium constant ($K_c$) is $2\times 10^{13}$ at $300\text{K}$, the value of ${\Delta }_r{G}^{\circ }$ at the same temperature will be:

Identify compound X in the following sequence of reactions: