Question

If 260 grams of acetylene gas burns completely, how many grams of carbon dioxide should be produced? If 759g are harvested from the reaction, what is the % yield

Answer 1

Correct option is D)

Reaction:

2C

2

H

2

+5O

2

⟶4CO

2

+2H

2

O

2 5

2 volumes of acetylene reacts with 5 volumes of oxygen

So oxygen required is 50×5/2=125cm

3

.

As air contains 20% oxygen only so volume of air required will be

20

125×100

=625cm

3