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4.0 g of caustic soda (NaOH) contains sa...

4.0 g of caustic soda (NaOH) contains same number of sodium ions as are present in :

A

5.3 g of `Na_2CO_3`

B

0.05 mole of `Na_2SO_4`

C

5.85 g of NaC l

D

0.1 mole of `NaNO_3`

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