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20g of NaOH (Molar mass = 40 g mol^(-1) ...

20g of NaOH (Molar mass `= 40 g mol^(-1)` ) is dissolved in 500 `cm^(3)` of water.Molality of resulting solution is

A

0.1m

B

0.5m

C

1.5m

D

1.0m

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The correct Answer is:
D
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