Question

Reaction of 1 moleofethyne with 2 moles of hydrogen.

Answer 1

The hydrogenation of acetylene can be written as:

C2H2+2H2+C2H6

As 2 moles of hydrogen are required to saturate one mole of acetylene and 1 mole = 2g of H 2, therefore 4g of hydrogen are required to saturate one mole of acetylene .