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Ammonia (NH(3)) is a colourless gas with...

Ammonia `(NH_(3))` is a colourless gas with a pungent odour. It can be prepared by

A

hydrolysis of calcium cyanamide

B

hydrolysis of aluminium nitride

C

heating an ammonium salt with a base

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
4
On a small scale ammonis is obtained from ammonium salts which decompose when heated with a storage base: Laboratory prepration
`2NH_(4)Cl+underset("slaked lime")(Ca(OH)_(2))overset(Delta)rarr2NH_(3)+2H_(2)O+CaCl_(2)`
`(NH_(4))_(2)SO_(4)+2NaOHrarr2NH_(3)+2H_(2)O+Na_(2)SO_(4)`
It is also onbtained when aluminimum nitride or calcium cyanamide is hydrolyzed:
`AlN+3H_(2)OrarrAl(OH)_(3)+NH_(3)`
`CaCN_(2)+3H_(2)O rarrCaCO_(3)+2NH_(3)`
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Knowledge Check

  • Ammonia can not be prepared by :

    A
    reduction of nitrite
    B
    reduction of nitrate
    C
    reduction of nitride
    D
    hydrolysis of amides

  • Collect statement is (i) Dinitrogen is a coloureless, odourless, tasteless and non-toxic gas (ii) Amminia is a colourless gas with purgent odour (iii) Nitric acid is a colourless liquid (pure) (iv) Phosphine is a colourless gas with rotten fish smell and is highly poisonous

    A
    i,ii, iv
    B
    ii,iv
    C
    i,ii,iii
    D
    i,ii,iii,iv

  • A pale yellow crystalline solid insoluble in water but soluble in CS_(2) is allowed to react with nitric oxide to give X and Y.X is a colourless gas with pungent odour. X is further allowed to react in aqueous medium with nitric oxide to yield Z and T. Compounds X,Z and T are-

    A
    `SO_(3),H_(2)SO_(3)`
    B
    `SO_(2),H_(2)SO_(4),N_(2)O`
    C
    `SiO_(2), H_(2)SO_(4),N_(2)`
    D
    `SO_(3),H_(2)SO_(3),N_(2)`

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