Question

An element A forms a compound ACl3with chlorine .Another element B forms a compound A 2B 3 with A. Given that the valency of chlorine is 1,what are the valencies of A & B?

Answer 1

Answers

aroraradhika69 Ambitious

Answer:

Explanation:

75 % by weight means 75gm of A is present in 100gm of compound formed say X

75÷atomic wt of a

=75÷75=1

Thus atoms of a in x is 1

Similarly atoms of b will be 25÷25=1

Hence the formula will be AB

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Answer 2

The valency of A is 3 as A Cl
3 1
A valency is exchanged with Cl valency and CL valency is exchanged with A valency.
The valency of B is2 as A B
3 2
There fore B valency is exchanged with A valency.

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