Question

Which one of the following statements about compounds is correct?

At least one of the elements in a mixture must be a gas.

It is easy to separate a compound into the elements that it is made from.

The properties of a compound are the same as the properties of the elements of which it is made up.

The elements in a compound are always present in the same ratio.

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Answer 1

Answer:

The elements in a compound are always present in the same ratio

Answer 2

Of the following statements The elements in a compound are always present in the same ratio is correct

• When two elements combine in a fixed proportion to form a complete new substance having its own unique property apart from its constituents it is called a compound.
• The proportion of elements in a compound are always the same whether we take them from any source. For e.g :- Water combines in ratio of 1:8 and the ratio is same whether it's from a water body or our home purifiers.
• This is on accordance with the law of constant proportions.
• Hence, last statement is correct option.