Which of the following is obtained when sodium phenoxide is heated with ethyl iodide
Options
(a) phenetole (b) phenol (c) ethyl phenyl alcohol (d) none of these
Correct Answer:
phenetole
Explanation:
C₂H₅I + […]
The reaction of phenol with alkaline chloroform gives salicylaldehyde, it is called
Options
(a) Gatterman aldehyde synthesis (b) Perkin’s reaction (c) Reimer Tiemann reaction (d) Duff reaction
Correct Answer:
Reimer Tiemann reaction
Explanation: […]
Chlorobenzene can be prepared by reacting aniline with
Options
(a) hydrochloric acid (b) cuprous chloride (c) chlorine in presence of anhydrous aluminum chloride (d) nitrous acid followed by heating with cuprous chloride
Correct […]
1,1,2,2-tetrabromoethane on treatment with Zn dust yields an
Options
(a) alkene (b) alkane (c) alkyne (d) haloalkane
Correct Answer:
alkyne
Explanation:
No explanation available. Be the first to write the explanation for this […]
Tert-butyl bromide on treatment with sodium methoxide yields
Options
(a) sodium tert-butoxide (b) methyl tert-butyl ether (c) tert-butyl alcohol (d) iso-butylene
Correct Answer:
iso-butylene
Explanation:
No explanation available. Be the first to write […]
Two possible stereo-structures of CH₃CHOHCOOH, Which are optically active are called
Options
(a) atropisomers (b) enantiomers (c) mesomers (d) diastereomers
Correct Answer:
enantiomers
Explanation:
No explanation available. Be the first to write the […]
In an SN1 reaction on chiral centres there is
Options
(a) inversion more than retention leading to partial racemisation (b) 100% retention (c) 100%inversion (d) 100% racemisation
Correct Answer:
inversion more than retention […]
Which of the following reaction(s) can be used for the preparation of alkyl halides? anh.ZnCl₂ (I)CH₃CH₂OH + HCl → (II)CH₃CH₂OH + HCl → (III)(CH₃)₃COH + HCl → (IV)(CH₃)₂CHOH + HCl →
Options
(a) […]
Which of the following compounds will undergo racemisation when solution of KOH hydrolyses
Options
(a) (i) and (ii) (b) (ii) and (iv) (c) (iii) and (iv) (d) (i) and (iv)
Correct Answer:
none
Alkyl halides react with metallic sodium in the presence of anhydrous ether is
Options
(a) Perkin’s reaction (b) Aldol’s reaction (c) Wurtz’s reaction (d) none of these
Correct Answer:
Wurtz’s reaction
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