Give the structers of A,B and C in the following reaction : (i) `C_(6)H_(5)NO_(2)overset(Sn+HCI)rarr` `Aoverset(NaNO_(2)+HCI)underset(273 K)rarr B overset(H_(2)O)rarrC` (ii) `CH_(3)CNoverset(H_(2)O //H^(+))rarr``Aoverset(NH_(3))underset(Delta)rarr` `Boverset(Br_2+KOH)rarrC`

Give the structers of A,B and C in the following reaction : (i) `C_(6)

1.	Give the structers of A,B and C in the following reaction : (i) `C_(6)H_(5)NO_(2)overset(Sn+HCI)rarr` `Aoverset(NaNO_(2)+HCI)underset(273 K)rarr B overset(H_(2)O)rarrC` (ii) `CH_(3)CNoverset(H_(2)O //H^(+))rarr``Aoverset(NH_(3))underset(Delta)rarr` `Boverset(Br_2+KOH)rarrC`
Answer» `C_(6)H_(5)NH_(2)overset(NaNO_(2)+HCI)rarr(B)C_(6)H_(5)N_(2)CIoverset(H_(2)O)rarr(C )C_(6)H_(5)OH` (ii) `CH_(3)CNoverset(H_(2)O/H^(+))rarr` `CH_(3)-COOHoverset(NH_(3))rarr(B)CH_(3)-CONH_(2)overset(Br2+KOH)rarr(C )CH_(3)-NH_(2)`

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
Rerrange the following in an increasing order of their basic strengths: `C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(6)H_(5))_(2)` NH and `CH_(3)NH_(2)`.
(b) Estimate the minimum potential difference needed to reduce `AI_(2)O_(3)` at `500^(@)C` The gibbs energy change for the decomposition reaction `2/3AI_(2)O_(3)rarr4/3AI+O_(2)`is 960 kJ (F=96500 C `mol^(-1))`

Give the structers of A,B and C in the following reaction : (i) `C_(6)H_(5)NO_(2)overset(Sn+HCI)rarr` `Aoverset(NaNO_(2)+HCI)underset(273 K)rarr B overset(H_(2)O)rarrC` (ii) `CH_(3)CNoverset(H_(2)O //H^(+))rarr``Aoverset(NH_(3))underset(Delta)rarr` `Boverset(Br_2+KOH)rarrC`

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