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

The oxidation number of oxygen in oxygen difluoride (OF₂) and dioxygen difluoride (O₂F₂) respectively is ______.

Which of the following trend is correct with respect to the reactivity of alkali metal oxides with water?

The most abundant molecule in cell is ______.

The elementary reaction \[\ce{O3_{(g)} + O_{(g)} -> 2O2_{(g)}}\] is ______.

Order of reaction for which unit of rate constant is mol dm^–3 s^–1 is _______.

Which of the following type of carbohydrates cannot be hydrolyzed?

Which of the following monosaccharides is a tetrose sugar?

______ is the prosthetic group of glycoproteins.

Which of the following reactions is Merck's method to prepare hydrogen peroxide?

Which of the following group 16 element is present in copper pyrites and zinc blende?

The number of moles of methyl bromide required to convert ethanamine to N, N-dimethylethanamine is ____________.

Molar conductance of BaCl₂, H2SO₄ and HCl at infinite dilution are X₁, X₂ and X₃ respectively. Molar conductance of BaSO₄ at infinite dilution is ____________.

If partial pressure of oxygen at 50°C is 0.14 atm, the concentration of dissolved oxygen at 50°C under pressure of one atmosphere is ______.

(Henry's law constant for oxygen = 1.3 × 10⁻³ mol dm⁻³ atm⁻¹)

Which of the following is INCORRECT for the following reaction?

\[\ce{2Zn_{(s)} + O2_{(g)} -> 2ZnO_{(s)}}\]

____________ can be categorised as a green solvent.

When phenol is oxidised with chromic anhydride or sodium dichromate in the presence of H₂SO₄, ____________ is formed.

____________ are characterized by gradual filling up of 4f orbitals.

Which of the following is used as a substitute for wool?

In a hypothetical reaction,

\[\ce{2A + B -> Products}\]. Rate = k [A]² [B]

Molar concentration of 'B' is kept constant and molar concentration of 'A' is tripled, then the rate of reaction will ____________.

The rate constant of a first order reaction whose half-life is 480 seconds, is ____________.