If the equivalent mass of a metal is doble that of oxygen then the weight of its oxide is ___ times greater than the weight of the metal.

Options

A. `1.5`
B. `0.5`
C. `2.5`
D. `2.0`

Answer

1

Explanation

According to the law of equivalence, in metal oxide Equivalents of metal = Equivalents of oxygen
or `("Mass of metal")/("Gram equivalent mass of metal")=("Mass of oxygen")/("Gram equivalent mass of oxygen")`
or `("Mass of oxygen")/("Mass of metal")=("Gram equivalent mass of oxygen")/("Gram equivalent mass of metal")`
`=1/2 ("given")`
Adding 1 to both sides, we get
`("Mass of oxygen")/("Mass of metal")+1=1/2+1=3/2=1.5`
`("Mass of oxygen + Mass of metal")/("Mass of metal")=1.5`
`("Mass of metal oxide")/("Mass of metal")=1.5`