Question

A substance X when burnt in air forms Y this Y dissolves in water to form an acid what is X and Y​

Answer 1

Explanation:

Given -

• Substance X burnt in air forms Y
• Y dissolves in water to form acid

To Find -

What is X and Y

From this question,

It is cleared that Y is non-metal because non-metal forms Acidic oxide

Now,

Substance X burnt in air forms Y

X + O2 -> Y

It means,

• C + O2 -> CO2

And

Y dissolves in water to form acid

Y + H2O -> Acid

It means,

• CO2 + H2O -> H2CO3

Hence,

The substance X is Carbon (C)

and Y is Carbon dioxide (CO2)

Note :-

• H2CO3 is an acid. It is called Carbonic acid.

Answer 2

x is carbon and y is carbon dioxide .

The acid is H2 Co3

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