Question

When an element forms an oxide in which oxyge
is 20% of the oxide by mass, the equivalent mas
of the element will be -
(1) 32 (2) 40 (3) 60 (4) 128​

Answer 1

Answer:

32

Explanation:

See : let equivalent weight of the element =x

$\frac{weight \: of \: oxygen}{equivalent \: weight \: of \: oxygen\: } = \frac{weight \: of \: elemet}{equivalent \: weight \: of \: element}$

20/8 = 80/x

therefore x = 32