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Question

Ca(OH)2+H3PO4CaHPO4+2H2O the equivalent weight of H3PO4 in the above reaction is

A
21
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B
27
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C
38
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D
49
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Solution

The correct option is D 49
The equivalent weight of H3PO4=molecular weight2
mole wt of H3PO4=3+31+64=98
982=49

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