Dist Test By Test

Question 1

Ethanolic AgNO3 and heat

Answer 1

Chloroalkane : white ppt soluble in aq NH3
Bromoalkane: cream ppt partially soluble in aq NH3
iodoalkane: yellow ppt insoluble in aq NH3
Acyl chloride: white ppt formed rapidly without heating

Question 2

Neutral FeCl3

Answer 2

Phenol: violet Color observed

Question 3

2-4 DNPH (condensation)

Answer 3

Ketones and aldehydes: orange ppt formed

Question 4

Tollens reagent and heat (ox)

Answer 4

Aldehyde: Silver mirror formed

Question 5

Fehling reagent and heat (ox)

Answer 5

Aliphatic aldehyde: Reddish brown ppt

Question 6

Na2Co3/NaHCO3 (aq) (acid-base)

Answer 6

Carboxylic acid
Acyl chloride
Aq acid
For all effervescence test for co2

Question 7

Iodofoam (aq I2 + NaOH (aq)+heat) (ox)

Answer 7

Alcohol with -c(OH)ch3

Carbonyl with -COCH3

Question 8

Br2(aq) (elec add)

Answer 8

Phenol
Alkene
Phenylamine
Orange decolorise

Question 9

Na metal (acid metal)

Answer 9

Alcohol
Phenol
Carboxylic acid
Effervescence of hydrogen

Question 10

PCl5 (substitution)

Answer 10

Alcohol
Carboxylic acid
Dense white fumes of HCL

Question 11

KCr2O7 (aq) h2so4(aq) heat (ox)

Answer 11

Aldehydes
Alcohol (excl tertiary)
Orange K2Cr2O7 turns green

Question 12

KMnO4 (aq) h2so4(aq) heat (ox)

Answer 12

Alkene
Alkyl benzene (if side chain ethyl gives effervescence of co2)
Aldehyde
Alcohol