Of the following reactions, how many rea...

Of the following reactions, how many reaction are used for the preparation of amines

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The correct Answer is:

1,2,3,6,7,8

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Which reaction cannot be used for the preparation of halogen acid

`CaF_(2) +H_(2) SO_(4"(conc)") +rarr CaSO_(4) + HF `

` NaHSO_(4) + NaCl rarr Na_(2) SO_(4) + HCl`

` NaCl + H_(2) SO_("4(conc)") rarr NaHSO_(4) + HCl`

`2KBr +H_(2) SO_("4(conc)") rarr K_(2) SO_(4) + 2HBr`

`R-X overset(NH_(3))toR-NH_(2)`

`R-X overset((i)NaN_(3))underset((ii)LiAiH_(4))toR-NH_(2)`

`R-X overset(NH_(3))underset(Al_(2)O_(3)//Delta)toR-NH_(2)`

`R-X overset(NaNH_(2))toR-NH_(2)`

`CH_(3)CH_(2)CONH_(2)overset(LiAlH_(4))to`

`CH_(3)CH_(2)NC overset(Na&C_(2)H_(5)OH)to`

`CH_(3)CONHCH_(3)overset(LiAlH_(4))to`

`CH_(3)CH_(2)CN overset(H_(3)O^(+))to`