1.

An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250 mL. The volume of 0.1 N NaOH required to completely neutralize 10 mL of this solution is

Answer»

40mL
20mL
10mL
5mL

Solution :Normality of OXALIC acid ` = (6.3 xx 1000)/(63 xx 250)`
= 0.4 N
`N_1V_1 = N_2V_2`
` 10 xx 0.4 = 0.1 xx V`
`V = (10 xx 0.4)/(0.1) = 40 mL`


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