Question Bank Directory

Which of the following fluoro-compounds is most likely to behave as a Lewis base?

Which of the following molecular hydrides acts as a Lewis acid?

Consider the following relations for emf of an electrochemical cell: (a) emf of a cell = (Oxidation potential of the anode) – (Reduction potential of the cathode) (b) emf of a cell = (Oxidation potential of the anode) + (Reduction potential of the cathode) (c) emf of a cell = (Reduction potential of the anode) + (Reduction potential of the cathode) (d) emf of a cell = (Oxidation potential of the anode) – (Oxidation potential of the cathode) Which of the following combinations correctly represents the relation for the emf of the cell?

Identify the statement that is incorrect regarding chirality:

$\Lambda^o_m$ for $\text{NaCl}$, $\text{HCl}$ and $\text{CH}_3\text{COONa}$ are $126.4$, $425.9$, and $91.05\text{ S cm}^2\text{ mol}^{-1}$ respectively. If the conductivity of $0.001028\text{ mol L}^{-1}$ acetic acid solution is $4.95 \times 10^{-5}\text{ S cm}^{-1}$, the degree of dissociation of the acetic acid solution is:

The compound with the highest pH among the following is:

Consider the following reaction: $\frac{4}{3}Al(s) + O_2(g) \rightarrow \frac{2}{3}Al_2O_3(s) \ ; \ \Delta G = -827 \text{ kJ mol}^{-1}$ The minimum e.m.f. required to carry out the electrolysis of $Al_2O_3$ is: (Given $F = 96500 \text{ C mol}^{-1}$)

In producing chlorine through electrolysis, 100 W power at 125 V is being consumed. The liberation of chlorine per min is: (ECE of chlorine is $0.367 \times 10^{-6} \text{ kg/C}$)

The molecular formula of diphenylmethane is $\text{C}_{13}\text{H}_{12}$. Find out the number of structural isomers possible when one of the hydrogens is replaced by a chlorine atom:

The dissociation equilibrium of a gas $AB_2$ can be represented as: $2AB_2(g) \rightleftharpoons 2AB(g) + B_2(g)$ The degree of dissociation is '$x$' and is small compared to 1. The expression relating the degree of dissociation ($x$) with equilibrium constant $K_p$ and total pressure $p$ is:

$CH_3-CH_2-CH=CH_2 \xrightarrow{HBr, \text{peroxide}} Y \xrightarrow{C_2H_5ONa} Z$ The product Z in the above-mentioned reaction is:

The fertilizer which makes the soil acidic is:

During the electrolysis of molten sodium chloride, the time required to produce $0.10 \text{ mol}$ of chlorine gas using a current of $3 \text{ amperes}$ is

At room temperature, MY and $NY_3$, two nearly insoluble salts, have the same $K_{sp}$ values of $6.2 \times 10^{-13}$. The true statement regarding MY and $NY_3$ is:

Aqueous solution of which of the following compounds is the best conductor of electric current?

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below. Then the species undergoing disproportionation is:

Find out the solubility product $K_{sp}$ of $Ca(OH)_2$ if the pH of its saturated solution is 9:

Which of the following is suitable to synthesize chlorobenzene?

Consider the following compounds/species: (Structures missing). The number of compounds/species which obey Hückel's rule is:

An organic compound A ($\text{C}_4\text{H}_9\text{Cl}$) in reaction with $\text{Na}$/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative. A is: