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Question

0.05 mole of Ca(OH)2 can neutralise H2SO4. This H2SO4 can be neutralised by :

A
0.05 mol of NaOH
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B
0.10 mol of NaOH
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C
0.05 mol of POH(OH)2
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D
none of the above is correct
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Solution

The correct option is A 0.10 mol of NaOH
The balanced reaction is as follows:
Ca(OH)20.05 mol+H2SO4CaSO4+2H2O
So according to balanced reaction,
1molCa(OH)21molH2SO4
0.05molCa(OH)20.05molH2SO4

H2SO4+2NaOHNa2SO4+2H2O
1 2
0.05 0.10
So, H2SO4 can be neutralised by 0.10 mol of NaOH.

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