Primary,secondary and tertiary amines may be separated by using
Options
(a) benzene (b) diethyl oxalate (c) sulphonyl chloride (d) acetyl chloride
Correct Answer:
sulphonyl chloride
Explanation:
No explanation available. Be the first to […]
Benzenamine reacts with excess bromine to produce
Options
(a) 2-bromobenzenamine (b) 2,3-dibromobenzenamine (c) 2,4-dibromobenzenamine (d) 2,4,6-tribromobenzenamine
Correct Answer:
2,4,6-tribromobenzenamine
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Nitrobenzene combines with hydrogen in the presence of platinum to yield
Options
(a) aniline (b) benzene (c) toluene (d) azobenzene
Correct Answer:
aniline
Explanation:
C₆H₅-NO₂ + 3H₂ → C₆H₅-NH₂ + 2H₂O. Nitrobenzene on […]
Which of the following compounds is the strongest base
Options
(a) Methylamine (b) Aniline (c) Ammonia (d) N-methyl aniline
Correct Answer:
Methylamine
Explanation:
Due to + I-effect of -CH₃ group, in methyl amine […]
What is obtained when benzoyl chloride reacts with aniline in the presence of sodium hydroxide
Options
(a) Benzoic acid (b) Benzanilide (c) Acetanilide (d) Azobenzene
Correct Answer:
Benzanilide
Explanation:
C₆H₅NH₂ + ClCOC₆H₅ + […]
What is formed when nitrobenzene is reduced using zinc and alkali
Options
(a) Phenol (b) Hydrazobenzene (c) Aniline (d) Nitrosobenzene
Correct Answer:
Hydrazobenzene
Explanation:
No explanation available. Be the first to write the […]
Which of the following statements is not correct
Options
(a) silicon is extensively used as a semiconductor (b) Carborundum is SiC (c) Silicon occurs in free state in nature (d) Mica contains the […]
Which of the following is a metalloid
Options
(a) C (b) Si (c) Ge (d) Sn
Correct Answer:
Ge
Explanation:
No explanation available. Be the first to write the explanation for this question […]
In graphite C atom is in …state
Options
(a) sp³ (b) sp (c) sp² (d) none of these
Correct Answer:
sp²
Explanation:
In graphite, the carbon atoms are arranged in regular hexagons in […]
White lead is
Options
(a) Pb₃O₄ (b) PbO (c) 2PbCO₃.Pb (OH)₂ (d) Pb(CH₃COO)₂.Pb(OH)₂
Correct Answer:
2PbCO₃.Pb (OH)₂
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
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