In compound formed with polyatomic ion, the ion is enclosed in a bracket before writing the number to indicate the ratio.

True

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False

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Solution

The correct option is A
True

In compound formed with polyatomic ion, the ion is enclosed in a bracket before writing the number to indicate the ratio. This is because, each atom in the polyatomic ion, need to satisfy the ratio as a complete set of an ion. For example, $C a (N O_{3})_{2}$ . Here since calcium has a valency of +2 and $N O_{3}$ has a valency of -1, we need to multiply the polyatomic nitrate ion with 2 in order to maintain the neutrality.

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Similar questions

N H_{4}^{+}, N a^{+}, C l^{-}, H^{+}, P O_{4}^{3 -}, N O_{3}^{-}, O H^{-}, O_{2}^{-}

N H_{4}^{+}

Identify the monoatomic and polyatomic ions from the following equation-
$P b (N O_{3})_{2}$ + $K_{2} S O_{4}$ $\to$ $2 K N O_{3}$ + $P b S O_{4}$

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