Chemistry - 2 — MH-CET Full Length Paper MCQs with Solutions

Which of the following stoichiometric defects in ionic solids causes a decrease in density of the crystal without altering the stoichiometry?

The molar conductivity of a $0.05\text{ M}$ solution of an electrolyte is $120\text{ S cm}^2\text{ mol}^{-1}$. If its limiting molar conductivity $\Lambda^\circ_m$ is $400\text{ S cm}^2\text{ mol}^{-1}$, the degree of dissociation ($\alpha$) is:

The rate constant $k$ of a reaction is related to activation energy $E_a$ by Arrhenius equation. A plot of $\ln k$ versus $1/T$ yields a straight line with slope equal to:

Consider the reaction: Chlorobenzene $+ 2\text{Na} + \text{CH}_3\text{Cl} \xrightarrow{\text{dry ether}} \text{Product } X + 2\text{NaCl}$. Reaction $X$ is known as:

The correct decreasing order of boiling points of the isomeric alcohols is:

The reaction of benzaldehyde with $50\%$ concentrated $\text{NaOH}$ solution at room temperature to yield benzyl alcohol and sodium benzoate is an example of:

When ethanal ($\text{CH}_3\text{CHO}$) is treated with $\text{I}_2$ in presence of $\text{NaOH}$, a yellow precipitate of compound $Y$ is formed. $Y$ is:

The conversion of an acyl chloride ($\text{R--COCl}$) to an aldehyde ($\text{R--CHO}$) by catalytic hydrogenation over $\text{Pd/BaSO}_4$ poisoned with sulfur is called:

Which of the following tests is used to distinguish between primary, secondary, and tertiary amines using benzenesulfonyl chloride?

When aniline reacts with nitrous acid ($\text{NaNO}_2 + \text{dil. HCl}$) at $273$--$278\text{ K}$, it yields benzene diazonium chloride. When treated with cuprous chloride ($\text{Cu}_2\text{Cl}_2/\text{HCl}$), the reaction is known as:

The helical structure of proteins ($\alpha$-helix) is stabilized primarily by:

Which of the following is a condensation polymer formed from hexamethylenediamine and adipic acid?

A biodegradable aliphatic polyester prepared by copolymerisation of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid is known as:

Which of the following principles of Green Chemistry aims at maximizing the incorporation of all raw material atoms into the final chemical product?

Carbon allotrope consisting of spherical caged clusters of 60 carbon atoms with truncated icosahedron geometry is:

The number of moles of water molecules present in $1.8\text{ mL}$ of water at $4^\circ\text{C}$ (density $= 1.0\text{ g mL}^{-1}$) is:

The maximum number of electrons that can be accommodated in a subshell with azimuthal quantum number $l = 3$ is:

Which of the following alkali metals imparts a golden yellow colour to the Bunsen flame?

According to Graham's law, the ratio of the rates of diffusion of $\text{CH}_4$ and $\text{SO}_2$ gases under identical conditions of temperature and pressure is: ($M_{\text{CH}_4} = 16$, $M_{\text{SO}_2} = 64$)

Which of the following oxoacids of sulfur contains an $\text{S--S}$ bond in its structure?

Which of the following octahedral complexes is diamagnetic and forms an inner-orbital ($d^2sp^3$) complex?

Which of the following alkyl halides undergoes $\text{S}_\text{N}1$ solvolysis in aqueous ethanol at the fastest rate?

A metal crystallizes in a face-centered cubic (FCC) lattice with edge length $a = 400\text{ pm}$. The radius of the metal atom is:

The vapor pressure of pure benzene at $300\text{ K}$ is $100\text{ mm Hg}$. When $2\text{ g}$ of a non-volatile solute is dissolved in $78\text{ g}$ of benzene, the vapor pressure becomes $90\text{ mm Hg}$. The molar mass of the solute is:

What is the osmotic pressure of a $0.02\text{ M}$ aqueous solution of $\text{K}_2\text{SO}_4$ at $300\text{ K}$, assuming complete degree of dissociation? ($R = 0.0821\text{ L atm K}^{-1}\text{ mol}^{-1}$)

The solubility of $\text{Ag}_2\text{CrO}_4$ in pure water is $S\text{ mol L}^{-1}$. Its solubility product ($K_{sp}$) is represented as:

A buffer solution contains $0.1\text{ M CH}_3\text{COOH}$ and $0.1\text{ M CH}_3\text{COONa}$. If $pK_a$ of acetic acid is $4.74$, the pH of the buffer on adding a small volume of water:

One mole of an ideal gas expands isothermally and reversibly from $10\text{ L}$ to $100\text{ L}$ at $300\text{ K}$. The maximum work done by the gas is: ($R = 8.314\text{ J K}^{-1}\text{ mol}^{-1}$, $\ln 10 = 2.303$)

For a reaction to be spontaneous at all temperatures, the thermodynamic criteria are:

How many Coulombs of electricity are required for the complete reduction of $1\text{ mol of Cr}_2\text{O}_7^{2-}$ into $\text{Cr}^{3+}$ in acidic medium?