1.

A white substance was alkaline in solution. Which of the following substances could it be

Answer»

`Fe_(2)O_(3)`
`Na_(2)CO_(3)`
`NH_(4)CL`
`NaNO_(3)`

Solution :Aqueous solution of `Na_(2)CO_(3)` is alkaline DUE to hydrolysis of `Na_(2)CO_(3)` in `Na^(+)` and `CO_(3)^(-)`.


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