Dunstan’s test is used for identification of:
1. Acetone
2. Alcohol
3. Glycerol
4. Carbonyl compound
Which are not cleaved by HIO4?
I : Glycerol
II : Glycol
III: 1, 3-propanediol
IV: Methoxy-2-propanol
1. I, II, III, IV
2. I, II
3. II, III
4. III, IV
Find missing reagents.
(a) x = LiAlH4, y = NaBH4
(b) x = LiAIH4 / AlCl3, y = LiAlH4
(c) x = LiAIH4, Y = LiAIH4 / AlCl3
(d) x = H2 / Ni, y = H2 / Pt
What sequence of reagents is required to accomplish the following transformation?
1. (1) NBS, ROOR (2) CH3CH2O- (3)2HBr (4) NH-2 (5) disiamylborane (6) H2O2,OH-
2. (1) Cl2hv (2) OH-, heat; (3) 2HCl (4) OH-,heat (5) HgSO4,H2SO4
3. (1) NBs,ROOR; OH-,DMSO
4. (1) Br2,hv (2) t-butoxide (3) BH3,THF (4) H2O2,OH-
The major product of the following reaction sequence will be
1. | |
2. | |
3. | |
4. |
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How many moles of HI are consumed in above reaction?
1. 1
2. 2
3. 3
4. 4
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Power alcohol is a mixture of petrol and alcohol in the ratio:
1. 4:1
2. 1:4
3. 2:1
4. 1:2
Fenton's reagent is:
1. H2O + FeSO4
2. H2O2 + FeSO4
3. H2O2 + ZnSO4
4. NaOH + FeSO4
The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is:
1. Acidic KMnO4
2. aAkaline K2Cr2O7
3. Chromium anhydride in glacial acetic acid
4. Pyridinium chlorochromate
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