Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following functional group
Options
(a) -COOH (b) -CHCl₂ (c) -CHO (d) -CH₂Cl
Correct Answer:
-CHO
Explanation: […]
Which of the following will not be soluble in sodium hydrogen carbonate
Options
(a) 2,4,6-Trinitrophenol (b) Benzoic acid (c) o-Nitrophenol (d) Benzenesulphonic acid
Correct Answer:
o-Nitrophenol
Explanation:
o-nitrophenol will not be soluble […]
Among the following sets of reactants which one produces anisole
Options
(a) CH₃CHO ; RMgX (b) C₆H₅OH ; NaOH ; CH₃I (c) C₆H₅OH ; neutral FeCl₃ (d) C₆H₅CH₃ ; CH₃COCl ; AlCl₃
Correct […]
In the manufacture of ethanol from starch by fermentation, the following enzyme has no role to play
Options
(a) lipase (b) maltase (c) zymase (d) amylase
Correct Answer:
lipase
Explanation:
Lipase acts on fats […]
Intermolecular hydrogen bonding is strongest in
Options
(a) methylamine (b) phenol (c) formaldehyde (d) methanol
Correct Answer:
methanol
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Diethyl ether is isomeric with
Options
(a) primary alcohol (b) secondary alcohol (c) tertiary alcohol (d) all of these
Correct Answer:
all of these
Explanation:
No explanation available. Be the first to write […]
Salicylic acids is prepared from phenol by
Options
(a) Reimer-Tiemann reaction (b) Kolbe’s synthesis (c) Gattermann’s reaction (d) None of above
Correct Answer:
Reimer-Tiemann reaction
Explanation:
No explanation available. Be the first […]
When ethanol is subjected to dehydration in presence of H₂SO₄, the intermediate formed is a
Options
(a) carbonium ion (b) carbanion (c) radical (d) carbene
Correct Answer:
carbonium ion
Explanation:
No explanation available. […]
Which of the following statements is not true about alcohols
Options
(a) Lower alcohols have fiery taste and strong smell (b) As molecular mass increases the boiling point increases (c) Lower alcohols are […]
A primary alcohol, C₃H₈O (A) on heating with sulphuric acid undergo dehydration to gives an alkene, B.B when reacted with HCl gave C,which on treatment with aqueous KOH gives compound D, C₃H₈O. A and D […]
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