A) Zero, since it contains \[C{{l}_{2}}\]
B) -1, since it contains \[C{{l}^{-}}\]
C) +1, since it contains \[Cl{{O}^{-}}\]
D) +1 and -1, since it contains \[Cl{{O}^{-}}\] and \[C{{l}^{-}}\]
Correct Answer: A
Solution :
[a] In \[Ca\left( OCl \right)CI\](bleaching powder,), one chlorine is as chloride and has oxidation number -1, the other chlorine is as \[OC{{l}^{-1}}\]and has oxidation number +1.
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