Acetylene, on reacting with formaldehyde under high pressure, gives
Options
(a) propanol (b) propyl alcohol (c) allyl aldehyde (d) butyndiol
Correct Answer:
butyndiol
Explanation:
HC ≡ CH + HCHO (Acetylene) → HC ≡ […]
The number of π-bond present in propyne is
Options
(a) 4 (b) 1 (c) 3 (d) 2
Correct Answer:
2
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which of the following gives methane on hydrolysis
Options
(a) CaC₂ (b) Al₄C₃ (c) Al₂O₃ (d) Fe₃O₄
Correct Answer:
Al₄C₃
Explanation:
Al₄C₃ + 12H₂O → 4Al(OH)₃ + 3CH₄↑
The reaction CH₃ – Br + 2Na + Br – CH₃ → CH₃ – CH₃ is called
Options
(a) Wurtz reaction (b) Perkin’s reaction (c) Aldol condensation (d) Levit reaction
Correct Answer:
Wurtz […]
Which of the following group activates the benzene ring most towards electrophilic substitution
Options
(a) –CHO (b) –NR₂ (c) –NHCOCH₃ (d) –NO₂
Correct Answer:
–NR₂
Explanation:
No explanation available. Be the first to […]
The electrophile in the nitration of benzene is
Options
(a) NO₂⁺ (b) NO₂ (c) NO⁺ (d) NO₂⁻
Correct Answer:
NO₂⁺
Explanation:
Nitronium ion (NO₂⁺) is an electrophile that actually attacks on the benzene […]
The most common type of reaction in aromatic compounds is
Options
(a) elimination reaction (b) addition reaction (c) electrophilic substitution reaction (d) rearrangement reaction
Correct Answer:
electrophilic substitution reaction
Explanation:
Aromatic hydrocarbons show […]
Which one of the following is a non-benzenoid aromatic compound
Options
(a) Aniline (b) Benzoic acid (c) Naphthalene (d) Tropolone
Correct Answer:
Tropolone
Explanation:
Tropolone is a non-benzenoid aromatic compound.
Which one among the following is most reactive towards electrophilic substitution reaction
Options
(a) Aniline (b) Nitrobenzene (c) benzoic acid (d) Acetanilide
Correct Answer:
Aniline
Explanation:
Aniline, -NH₂ group is highly activating group […]
The compound which contains all the four 1°,2°,3° and 4° carbon atoms is
Options
(a) 2,3-dimethylpentane (b) 3-chloro-2,3-dimethylpentane (c) 2,3,4-trimethylpentane (d) 3,3-dimethylpentane
Correct Answer:
3-chloro-2,3-dimethylpentane
Explanation:
No explanation available. Be the first to […]
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