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Q.

$C l^{- 1}, O^{- 2}, N^{- 3}$ are respectively called as

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a

mono,tri, divalent ions

b

mono,tetra, divalent ions

c

all the above

d

mono, bi, trivalent ions

answer is A.

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Detailed Solution

Based on the charge of ions $C l^{- 1}$ is monovalent, $O^{- 2}$ is bivalent, $N^{- 3}$ is trivalent.

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