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

Which of the following statements is INCORRECT?

What is the atomicity of aluminium phosphate?

9 gram anhydrous oxalic acid (mol. wt. = 90) was dissolved in 9.9 moles of water. If vapour pressure of pure water is pf the vapour pressure of solution is ______.

The rate constant of a first order reaction is 3 × 10⁻⁶ per s. If the initial concentration is 0.10 mol dm⁻³, the initial rate of reaction is ____________.

Which of the following ions will have spin-only magnetic moment equal to 1.73 BM?

Sc³⁺, Ti³⁺, Fe²⁺, Cu²⁺, Co²⁺

Identify coefficients 'x' and 'y' for the following reaction.

\[\ce{{x}H2O2_{(aq)} + ClO^-_{4(aq)} -> 2O2_{(g)} + ClO^-_{2(aq)} + {y}H2O_{(l)}}\]

The total number of electrons present in 20 mL of water is ____________.

(Density = 1 g mL⁻¹)

Which among the following has the highest boiling point?

In a first order reaction, the concentration of the reactant, decreases from 0.8 mol dm⁻³ to 0.4 mol dm⁻³ in 15 minutes. The time taken for the concentration to change from 0.1 mol dm⁻³ to 0.025 mol dm⁻³ is ____________.

At a certain temperature, the solubility product of MX is 6.4 × 10⁻⁵. The solubility of salt in mol L⁻¹ is ____________.

Castner-Kellner cell is used in the preparation of ____________.

In a first order reaction, the concentration of the reactant is reduced to 25% in one hour. The half-life period of the reaction is ____________.

The number of atoms in 500 g of a fcc crystal of a metal with density d = 10 g/cm³ and cell edge 100 pm, is equal to ____________.

During the electrolysis of molten NaCl, the time required to produce 0.10 mol of Cl₂ gas using a current of 2 amperes is ____________.

The CORRECT increasing order of ionization enthalpy is ____________.

What is the order of reaction if the unit of rate constant (k) is mol dm⁻³ s⁻¹?

The valence shell electronic configuration of V³⁺ ion is ____________.

Which of the following set represents weak acids?

The temperature of 32°C is equivalent to ______.

Spin-only magnetic moment of Mn²⁺ ion is ____________.