The hydrogen ion concentration in pure water is10−7g.ions/lit. An aqueous solution will be acidic, if its hydrogen ion concentration in g. ions/ lit. is ____.
A
10−6
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B
10−7
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C
10−8
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D
10−9
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Solution
The correct option is A10−6
1g-ion is the no. of ions present in 1 mole of the substance.
An aqueous solution will be acidic if it's hydrogen ion concentration is greater than 10−7 g.ions/lit.
Hence, the solution having hydrogen ion concentration 10−6 g.ions/lit will be acidic.