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Question

One mole each of H3PO2, H3PO3 and H3PO4 will neutralize 'x' mol of NaOH,'y' mol of Ca(OH)2 and 'z' mol of Al(OH)3 (assuming all to be strong electrolytes) respectively. x,y and z are in the ratio:

A
3:1.5:1
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B
1:2:3
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C
3:2:1
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D
1:1:1
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Solution

The correct option is D 1:1:1

1 mole of H3PO2 will neutralize 1 mole of NaOH

1 mole of H3PO3 will neutralize 1 mole of Ca(OH)2

1 mole of H3PO4 will neutralize 1 mole of Al(OH)3

The reatio of x:y:z is 1:1:1

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