Question

Explain occurrence of methane and its preparation.

Page 214 Chapter - 10. Mineral Coal and Minerak Oil

Answer 1

Answer:

Methane is prepared in laboratory by reacting sodium acetate (CH3COONa) with soda lime (mixture of NaOH and CaO) . Heated in a test tube.

Reaction:

CH3COONa + NaOH gives CH4+Na2CO3

Answer 2

Dear Student,

◆ Methane -

Methane is colourless, odourless, tasteless gas.

# Occurrence -

• It is naturally found in sewers, landfills, septic tanks, etc
• It is formed by decomposition of organic materials.

# Preparation -

In laboratory, methane is obtained by heating sodium acetate with soda lime. (CaO acts as catalyst here)

CH3COONa + NaOH + ∆ --> CH4 + Na2CO3

Thanks dear. Hope I was useful..