1 g of metal oxide on reduction gives 0.68 g of the metal. The equivalent weight of the metal is

Options

A. 17
B. 32
C. 34
D. 68

Answer

A

Explanation

Mass of `O_2` in 1g of metal oxide
= 1 -0.68 = 0.32 g
Hence, 1 mol of metal oxide contain= 2 Atom of oxygen
`therefore` Valency of the metal `= 2 xx 2 = 4 `
Equivalent weight of the metal
`=("Molecular Mass")/("Valency")`
`=68/4=17`