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The number of hydrogen atoms attached to phosphorus atom in hypophosporus acid is 

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The number of hydrogen atoms attached to phosphorus atom in hypophosporus acid is 

1) zero 

2) one 

3) two 

4) three

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1 Answer

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Correct option is 3) two

Structure of hypophosphorus acid:

It can be seen clearly in the structure that two atoms of hydrogen are attached to Phosphorus atom.

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