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Question

The total number of diprotic acids among the following is:


H3PO4, H2SO4, H3PO3, H2CO3, H2S2O7,H3BO3, H3PO2, H2CrO4, H2SO3

A
6
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B
5
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C
4
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D
2
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Solution

The correct option is A 6
A diprotic acid is an acid that contains within its molecular structure two hydrogen atoms per molecule capable of dissociating (i.e., ionizable) in water.
H2SO4, H2CO3, H2S2O7, H2CrO4, H3PO3, H2SO3

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