Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration which confirms the presence of N and S

127.    Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration which confirms the presence of

(A) S

(B) N

(C) N and S

(D) S and Cl

Answer:: (C)

128.    Amines behave as

(A) Lewis acids

(B) Lewis base

(C) aprotic acid

(D) neutral compound

Answer:: (B)

129.    Among the following, the compound that contains ionic, covalent and coordinate linkage is

(A) NaCl

(B) CaO

(C) NH3

(D) NH4Cl

Answer:: (D)

130.    Among the following, which is least acidic?

(A) phenol

(B) O-cresol

(C) p-nitrophenol

(D) p-chlorophenol

Answer:: (B)

131.    An alkyl halide reacts with alcoholic ammonia in a sealed tube, the product formed will be

(A) a primary amine

(B) a secondary amine-

(C) a tertiary amine

(D) a mixture of all the three

Answer:: (D)

132.    An aqueous solution containing 6.5 gm of NaCl of 90% purity was subjected to electrolysis. After the complete electrolysis, the solution was evaporated to get solid NaOH. The volume of 1 M acetic acid required to neutralise NaOH obtained above is

(A) 100 cm3

(B) 200 cm3

(C) 1000 cm3

(D) 2000 cm3

Answer:: (A)