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A salt on reaction with dil. H2 SO4 give...

A salt on reaction with dil. `H_2 SO_4` gives a reddish brown gas. The salt is

A

`KNO_(2)`

B

`ZnBr_(2)`

C

`NaNO_(3)`

D

`ZnCO_(3)`

Text Solution

Verified by Experts

`2KNO_(2)+H_(2)SO_(4)to K_(2)SO_(4)+HNO_(2)`
`3HNO_(2) to HNO_(3) +H_(2)O +2NO`
`underset("From air ")(2NO +O_(2))tounderset(("Reddish brown"))(2NO_(2) uarr)`
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Knowledge Check

  • KBr, on reaction with conc. H_(2)SO_(4) , gives reddish-brown gas :

    A
    Bromine
    B
    Mixture of bromine and HBr
    C
    HBr
    D
    `NO_(2)`

  • KBr ,on reaction with cone H_(2)SO_(4) give reddish brown gas which bleaches moist limus paper .The evolved gas is

    A
    Bromine
    B
    Mixture of bromine and HBr
    C
    `HBr`
    D
    `NO_(2)`

  • An inorganic salt on reaction with dil. HCl ( or dil H_(2)SO_(4)) give colourless gas, which turns lime water milky. The anion present in the salt is

    A
    `CO_(3)^(2-)`
    B
    `NO_(3)^(-)`
    C
    `Cl^(-)`
    D
    `SO_(4)^(2-)`

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