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Reason for regarding water as components

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Reason for regarding water as components

Posted by Riya Saini 4 years ago

CBSE > Class 09 > Science

1 answers

Riya Saini 4 years ago

Water is considered to be a compound due to the following reasons :
(i) Water cannot be separated into its constituents hydrogen and oxygen by physical methods.
(ii) Properties of water are entirely different from its constituents hydrogen and and oxygen. Hydrogen is combustible while oxygen supports combustion. Water is quite different from the two and it extinguishes fire.
(iii) Heat and light are given out when water is formed by burning hydrogen and oxygen.
(iv) The composition of water is fixed. Its constituents hydrogen and oxygen are present in the ratio of 1 : 8 by mass.
(v) Water has a fixed boiling point of(or 373 K) under atmospheric pressure of one atmosphere (or 760 mm).

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