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प्रश्न
Complete the statement given below by filling in the blanks with the correct words.
The valency of iron in FeO is _______ of chlorine [chloride] in CaCl2 is ________ and of dichromate in K2 Cr2 O7 is ________.
उत्तर
The valency of iron in FeO is 2+ of chlorine [chloride] in CaCl2 is 1– and of dichromate in K2 Cr2 O7 is 2–.
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