Question

20g of N2 reacts with 5g of H2 find reactant left unreacted​

Answer 1

Explanation:

Correct option is

C

56g of N

2

+10g of H

2

N

2

(g)+3H

2

(g)→2NH

3

(g)

In the given reaction, 1 mol of N

2

reequires 3 moles of H

2

for the formation fo ammonia.

Thus if the number of moles of N

2

and H

2

should be in ratio 1:3.

We know,

n=

molecular weight

weight

Thus in option C 56g of N

2

means 2 moles of N

2

and 10g of H

2

means 5 moles of H

2

.

Thus here H

2

acts as limiting reagent.

Answer 2

Answer:

N2+3H2 --- 2NH3.

HOPE IT HELPS YOU