Question

The equivalent weight of CH4 in the reaction CH4+2O2->CO2+2H2Ois (M= mol.wt) 1)M/4 2)M/8 3) M/12 4) M/16

Answer 1

Equivalent mass of CH4 :
=(atomic mass of C/Valency ) +atomic mass of H/valency
12/4+1/2
=3+1=4
as molecular mass of CH4 is 16u
equivalent mass of CH4=4=16/4=M/4
so option 1 is correct.

Answer 2

We know that:
Equivalent mass of CH4 :
⇔(atomic mass of C/Valency ) +atomic mass of H/valency
⇒12/4+1/2
⇒3+1=4
molecular mass of CH4 is 16u
∵equivalent mass of CH4=4=16/4=M/4
∴ option 1 is correct.