HSC Science (Computer Science) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Chemistry

Explain pseudo first order reaction with a suitable example.

Explain with the help of a potential energy diagram that the catalyst increases the rate of the reaction.

Derive an integrated rate law expression for first order reaction: A → B + C

The rate constant of the first order reaction is 1.386 min^–1. Calculate the time required for 80% reactant to decompose?

Tertiary amines have lowest boiling points because ________________

Arrange the following compounds in increasing order of their boiling points.

Ethyl alcohol, Ethyl amine, Ethanoic acid, Ethane

Write units of rate constants for:

1. First-order reaction
2. Zero-order reaction

Derive an expression for the relation between half-life and rate constant for first-order reaction.

The gas evolved when sulfuric acid reacts with copper metal _______.

Hot and concentrated alkali NaOH reacts with chlorine to form _______.

When SO₂ is passed through an aqueous solution of I₂, the solution becomes _______.

Why oxygen cannot exhibit a higher oxidation state?

What is the action of chlorine on cold and dilute sodium hydroxide.

What is the action of chlorine on hot and concentrated sodium hydroxide?

Write the chemical reaction of action of Cl₂ on excess NH₃.

What happens when chlorine reacts with?

Al

What happens when chlorine reacts with?

Na

What happens when chlorine reacts with?

S₈

What happens when chlorine reacts with?

P₄

The following ion has the maximum number of unpaired electrons.