Which of the following polyatomic ions does not have valency of $- 1 ?$

O H

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{N H}_{4}

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{N O}_{3}

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{S O}_{4}

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Solution

The correct option is C ${S O}_{4}$
The sulphate ion ${S O}_{4}^{2 -}$ has valency of $2.$

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Similar questions

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

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

Which of these is a polyatomic ion?

${S O}_{4}^{- 2}$ , ${N O}_{3}^{- 1}$ , ${C O}_{3}^{- 2}$

O H

N H_{4}

C O_{3}

O C l

O H

P O_{4}

S O_{4}

Which of these is a polyatomic ion?

${S O}_{4}^{- 2}$ , ${N O}_{3}^{- 1}$ , ${C O}_{3}^{- 2}$

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