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Hydrogen

Question
CBSEENCH11006933

Complete the following reactions:
left parenthesis straight i right parenthesis space CaO left parenthesis straight s right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight l right parenthesis space space rightwards arrow space space
left parenthesis ii right parenthesis space Na subscript 2 straight O left parenthesis straight s right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight l right parenthesis space rightwards arrow space
left parenthesis iii right parenthesis space Fe left parenthesis straight s right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight l right parenthesis space rightwards arrow space space

Solution
left parenthesis straight i right parenthesis space CaO left parenthesis straight s right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight l right parenthesis space space rightwards arrow space space space Ca left parenthesis OH right parenthesis subscript 2
left parenthesis ii right parenthesis space Na subscript 2 straight O left parenthesis straight s right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight l right parenthesis space space rightwards arrow space space 2 NaOH
left parenthesis iii right parenthesis space 3 Fe left parenthesis straight s right parenthesis space plus space 4 straight H subscript 2 straight O left parenthesis straight l right parenthesis space rightwards arrow space space Fe subscript 3 straight O subscript 4 space plus space straight H subscript 2