1.

Which of the followi9ng pairof acidredicals can bedistinguished by using dil H_(2)SO_(4)?

Answer»

`C_(2)O_(4)^(2-)` and `NO_(3)^(Θ)`
`NO_(3)O_(4)^(Θ)` and `NO_(2)^(Θ)`
`CI^(Θ)` and `Br^(Θ)`
`HCO_(3)^(Θ)` and `CO_(3)^(2-)`

Solution :
HENCE ,distincition is possible
C. Both `CI^(Theta)`and `Br^(Theta)` have no reaction with DIL `H_(2)SO_(4)`
d.Both `HCO_(3)^(Theta)` and `CO_(3)^(2-)` produce `CO_(2) UARR` which evolved witheffecrescences


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