LEVEL – 1

1. Why is cyclproprane more reactive than propane?

Ans: In Cyclopropane,bond angle is 60^o which is much less compared to the normal tetrahedral bond angle of 109.5^o for sp³ hybridized carbon. Therefore, the molecule is very much strained and hence reactive.

2. Why is Wurtz reaction not preferred for preparation of alkanes containing odd no of carbon atoms?

LEVEL – 1

1. Why is boron used in nuclear reactions?

Ans: Because Boron can absorb neutrons .

2. By giving a balanced equation show how B(OH)_₃ behaves as an acid in water.

LEVEL – 1

1.What happens when peroxydisulphuric acid is hydrolysed with water?

Ans: Sulphuric acid and hydrogen peroxide.

2. Name the gases produced when water reacts with:

(a) Aluminium nitride

(b) Aluminium carbide

Ans:

(a)ammonia gas is formed

(b) methane is formed

LEVEL – I

1. Mention the factors that affect equilibrium constant.

Ans: Temperature, pressure, catalyst and molar concentration of reactants and products.

2. What is ionic products of water?

Ans: