Fructose reduces Tollen's reagent due to
asymmetric carbons
primary alcoholic group
secondary alcoholic group
enolisation of fructose followed by conversion to aldehyde by base
D.
enolisation of fructose followed by conversion to aldehyde by base
In aqueous solution, fructose is enolised and then converted into aldehyde in basic medium. All aldehydes generally reduce Tollen's reagent, thus fructose also reduces Tollen's reagent.
The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds
III > II > I
II > I > III
I > III > II
I > II > III
Match the compounds given in List I with List II and select the suitable option using the codes given below.
List I | List II | ||
A. | Benzaldehyde | 1. | Phenolphthalein |
B. | Phthalic anhydride | 2. | Benzoin condensation |
C. | Phenyl benzoate | 3. | Oil of wintergreen |
D. | Methyl salicylate | 4. | Fries rearrangement |
A B C D
4 1 3 2
A B C D
4 2 3 1
A B C D
2 3 4 1
A B C D
2 1 4 3
An alkene having molecular formula C8H12 on ozonolysis yields glyoxal and 2, 2-dimethyl butane-l, 4-dial. The structure of alkene is