An orange coloured compound (A) on heating decomposes to form a solid and gaseous mixture which contain a gas (B) and `H_(2)O` vapour. (B) on treatment with `CaC_(-2)` forms (C ). (C ) on hydrolysis with hot `H_(2)O` produces a gas (D) which when added to `Hg_(2)Cl_(2)` results in the formation of a black precipitate.
Compound B is
An orange coloured compound (A) on heating decomposes to form a solid and gaseous mixture which contain a gas (B) and `H_(2)O` vapour. (B) on treatment with `CaC_(-2)` forms (C ). (C ) on hydrolysis with hot `H_(2)O` produces a gas (D) which when added to `Hg_(2)Cl_(2)` results in the formation of a black precipitate.
Compound B is
Compound B is
A
`NO_(2)`
B
`N_(2)O`
C
`NH_(3)`
D
`N_(2)`
Text Solution
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The correct Answer is:
D
`(NH_(4))_(2)Cr_(2)O_(7)overset(Delta)(rarr)Cr_(2)O_(3)+underset((B))(N_(2))+H_(2)O`
`N_(2)+CaC_(2)rarr underset((C ))(CaNCN)`
`darr H_(2)O`
`CaCO_(3)+NH_(3)`
`underset("Excess")(NH_(3))+Ni^(2+)rarr underset("Blue solution")([Ni(NH_(3))_(6)]^(2+))`
`N_(2)+CaC_(2)rarr underset((C ))(CaNCN)`
`darr H_(2)O`
`CaCO_(3)+NH_(3)`
`underset("Excess")(NH_(3))+Ni^(2+)rarr underset("Blue solution")([Ni(NH_(3))_(6)]^(2+))`
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