Question

Define law of reciprocal proportion with example

Answer 1

Answer:

The law of reciprocal proportions was proposed by Jeremias Ritcher in 1792. It states that, "If two different elements combine separately with the same weight of a third element, the ratio of the masses in which they do so are either the same or a simple multiple of the mass ratio in which they combine."

Explanation:

For example -

Oxygen and sulfur react with copper to give copper oxide and copper sulfide, respectively. Sulfur and oxygen also react with each other to form SO2. Therefore,

in CuS:

Cu:S = 63.5:32

in CuO:

Cu:O = 63.5:16

S:O = 32:16

S:O = 2:1

Now in SO2:

S:O = 32:32

S:O = 1:1

Thus the ratio between the two ratios is the following:

2/1 : 1/1 = 2:1

This is a simple multiple ratio.