What is the action of `NaNO_(2)//HCl (aq)` at ice cold temperature on
(a) `C_(2)H_(5)NH_(2)` (b) `C_(6)H_(5)NH_(2)` (c) `(CH_(3))_(2)NH` (d) `(CH_(3))_(3)N`

Write the conjugate acid for the following (i) C_(2)H_(5)NH_(2) (ii) CH_(3)COO^(-)

Give one chemical test to distinguish between CH_(3)CH_(2)NH_(2) and C_(6)H_(5)NH_(2) .

Draw resonance structures for the following : (a) CH_(3)COO^(-), (b) CH_(3)CONH_(2) , (c) C_(6)H_(5)CHO , (d) C_(6)H_(5)COO^(-)

Assign delta+ and delta- to each atom joined by the covalent bond shown in the following structures. (a) CH_(3)-Br. (b) CH_(3)OCH_(3) . (c ) CH_(3)NH_(2) , (d) CH_(3)-O-SO_(2)-OCH_(3)

Write IUPAC name of the following (k) CH_(3)CH_(2)CH_(2)CH_(2)NH_(2)

Calculate the molecule masses of H_(2)O_(2),Cl_(2),CO_(2), CH_(4), C_(2),H_(2),C_(2),H_(4),NH_(3),CH_(3), OH

How are the following conversions effected ? (a) C_(6)H_(5)NH_(2) rarr C_(6)H_(6) (b) C_(6)H_(5)NO_(2)rarr C_(6)H_(5)OH (c) C_(6)H_(5)NH_(2)rarr C_(6)H_(5)I (d) C_(6)H_(5)NH_(2)rarr C_(6)H_(5)NO_(2)

Identify the electrophile and nucleophile in the following reactions : (a) C_(6)H_(5)N_(2)Cl +KI rarr C_(6)H_(5)I+KCL (b) C_(6)H_(5)N_(2)Cl +C_(6)H_(5)OH rarr C_(6)H_(5)N=N-C_(6)H_(4)OH (c) C_(6)H_(5)N_(2)Cl+CH_(3)OH rarr C_(6)H_(5)OCH_(3) (d) C_(6)H_(5)N_(2)Cl+H_(2)O rarr C_(6)H_(5)OH