UPSEE Solved Model Paper 7

Given:
Mass of metallic chloride = 74.5 g
Mass of chlorine in metallic chloride = 35.5 g
We have to find the equivaIent weight of the meal.
We know that,
Gram-Equivalent of metallic chloride = gram-equivalent of chlorine ... (i)
Now,
Gram-equivalent is given by:
Gram-equivalent =

Mass

Equivalent‌mass

And,
Equivalent mass is given by:
Equivalent mass =

Atomic‌mass

Valency

Equivalent mass of C l = 35.5 (as atomic mass of Cl = 35.5 & valency of Cl = 1)
Let equivalent mass of metallic chloride be 'E'.
Substituting all the values in equation (i), we get

374.5

E

=

35.5

35.5

E = 74.5
Thus, equivalent mass oi metallic chloride = 74.5
Also,
Equivalent mass of metal = Equivalent mass of metallic chloride - Equivalent mass of chlorine in metallic chloride
= 74.5 - 35:5
= 39.0 g
Hence, option 'C' is correct