What happens when ethylamine is treated with
(a) `CHCl_(3)//NaOH` (b) `CS_(2)` (c ) `COCl_(2)` (d) `C_(6)H_(5)CHO`

(b) What happens when chlorobenzene treated with NaOH?

What happens when boron reacts with a) conc. H_(2)SO_(4) b) conc. HNO_(3) c) SiO_(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^(-)

Write the IUPAC names of (a) C_(2)H_(5)OCH_(3) (b) C_(6)H_(5)OC_(2)H_(5)

What happens when the following compounds are treated with dilute NaOH solution in cold ? (a) propanal, (b) (CH_(3))_(3)C-CHO , (c) mixture of (CH_(3))_(3) C CHO and acetone.

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)

How can the following conversions be effected ? (a) CH_(3)COCl rarr CH_(3)CHO (b) CH_(3)COCl rarr CH_(3)COCH_(3) (c ) CH_(3)CN rarr CH_(3)CHO (d) CH_(3)CN rarr CH_(3)CH_(2)OH

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

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

What happens when lactic acid is (i) treated with dilute H_(2)SO_(4) (ii) heated alone (iii) oxidised with alkaline KMnO_(4)