What is normality of a solution?

No. of gram equivalents per litre of solution

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No. of milli-equivalents per litre of solution

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No. of gram- equivalents of solute.

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No. of milli-equivalents per milli-litre of solution

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Solution

The correct options are
A
No. of gram equivalents per litre of solution

D
No. of milli-equivalents per milli-litre of solution

Normality is defined as the number of gram-equivalents per litre of solution.
No. of Milli-equivalents = 1000 $\times$ No. of gram equivalents just like there are 1000 milli-litres in one litre.

$∴$ N = $\frac{N u m b e r o f g r a m e q u i v a l e n t s o f s o l u t e}{V o l . o f s o l u t i o n (i n L)}$

= $\frac{1000 \times N o . o f m i l l i - e q u i v a l e n e t s o f s o l u t e}{1000 \times v o l u m e o f s o l u t i o n (i n m L)}$

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