Which distillation gives 100% nitric acid?

Steam distillation

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Vaccum distillation

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Simple distillation

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Fractional distillation

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Solution

The correct option is D Fractional distillation
The aqueous nitric acid obtained can be concentrated by distillation up to about 68% by mass. Further concentration to 98% is achieved by dehydration with conc. sulphuric acid.

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