1.

Assertion :- If 100 cc of 0.1N HCl is mixed with 100 cc of 0.2 N HCl, the normality of the final solution will be 0.30. Reason :- Normalities of similar solutions like HCl can be added.

Answer»

If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is FALSE.
If asserrion is false but reason is true.

Solution :If 100 cc of 0.1 N HCL is MIXED with 100 cc of 0.2 N HCl the normality of the FINAL solution will be 0.15.
`N_(1)V_(1)+N_(2)V_(2)=N_(3)V_(3) i.e., 0.1xx100+0.2xx100`
`=N_(3)xx200` or `N_(3)=(0.3xx100)/(200)=0.15`


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