Q.

If two bottles A and B contain I M and 1 m aqueous solution of sulphuric acid respectively,

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A is more concentrated than B

B is more concentrated than A

Concentration of A is equal to concentration of B

it is not possible to compare the concentration

answer is B.

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Detailed Solution

1 M H2SO4 means 1 mole H2SO4 in 1000 cc of solution where as, 1 m H2SO4 means I mole H2SO4 in 1000 g of waterTotal volume of 1 m solution will be greater than 1000 cc due to extra mole of H2SO4. Hence, number of moles per 1000cc will be less than 1 mole. Thus, 1 M is less concentrated than 1 m.

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