MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

K_sp of a sparingly soluble salt AB is 1 × 10⁻⁸. When [A⁺] = 10⁻⁴ M, which of the following concentrations of B⁻ will NOT give precipitate of AB?

In which of the following, ∆S is positive?

Which of the following is responsible for the solubility of lithium compounds in organic solvents?

When lanthanoids (Ln) are heated to about 2800 K with carbon, the carbides with general formula ____________ are obtained.

Optical isomerism is exhibited by ____________.

What is the product of the following reaction?

\[\ce{H3C - C ≡ CH + H - OH ->[{40%}H2SO4][{1%}HgSO4] ?}\]

For the reaction:

\[\ce{2Cl_{(g)} -> Cl2_{(g)}}\]

Calculate the total volume occupied by 48 g oxygen and 42 g nitrogen at STP.

____________ is used for treatment of lead poisoning.

Which one of the following has ΔS⁰ greater than zero?

What is the general molecular formula of the product obtained on reacting lanthanoids (Ln) with nitrogen?

The real gas obeys ideal gas laws only at ____________.

The most suitable reagent(s) required to prepare 1-iodobutane from but-1-ene is/are ____________.

Which is the INCORRECT property of lanthanoids?

Which element among the following lanthanoids has the smallest atomic radius?

Under identical conditions, the pressure of a real gas is ____________.

For the following reaction:

\[\ce{Fe2O3_{(s)} + 3CO_{(g)} -> 2Fe_{(s)} + 3CO2_{(g)}}\]; ΔH⁰ = −29.8 kJ and ΔS⁰ = 15 J K⁻¹. What is the value of \[\ce{ΔS_{(total)}}\] at 298 K?

Heat of combustion of C_(s), H_2(g) and C₂H_6(g) are −x₁, −x₂ and −x₃ respectively. Hence heat of formation of C₂H_6(g) is ____________.

Which of the following conditions indicates the reaction is spontaneous?

Equilibrium constant for a reaction is 20. What is the value of ∆G⁰ at 300 K? (R = 8 × 10⁻³ kJ)