In which of the following the valency of each of the constituent elements is equal to the total number of atoms in one molecule of the compound?

H_{2} S

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H C l

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C a O

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M g C l_{2}

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Solution

The correct option is C $C a O$
In $C a O$ , valency of each of the constituent elements is $2$ and is equal to the total number of atoms $(2)$ in one
molecule of the compound.

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Similar questions

Which of the following statements about a compound is incorrect ?

(a) A molecule of a compound has atoms of different elements

(b) A compound cannot be separated into its constituent elements by physical methods of separation

(d) The ratio of atoms of different elements in a compound is fixed

Which of the following term defines the number of atoms present in one molecule of an element?

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