Chemistry Worksheet With Answers Page 2
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7(a) D-fructose (b) D-ribose
(c) D-glucose (d) L-glucose
Ans.(c)
21. Benzaldehyde condenses with N,N-dimethyl aniline in presence of anhydrous ZnCI2 to
give
(a) azo dye (b) malachite
(C) michlers ketone (d) buffer yellow
Ans.(b)
22. Which of the following reactions is given by only primary amines?
(a) Reaction with HNO2
(b) Reaction with chioruform and alcoholic KOH
(C) Reaction with acetyl chloride
(d) Reaction with Grignard reagent
Ans.(b)
26. Aldehyde not showing cannizzaro’s reaction is
(a) paraldehyde (b) choraI
(c) formaldehyde (d) acetaldehyde
Ans.(d)
28. Which of the tollowing statements is not correct?
(a) All alcohols are miscible with water
(b) Only lower alcohols are miscible with water
(C) All alcohols are not poisonous
(d) Methanol IS poisofloUS
Ans.(a)
29. Cyclohexanol is
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