0.092 g of a compound with the molecular formula C3H8O3 reaction with an excess of CH3MgI gives 67.00 mL of methane at STP. The number of active hydrogen atoms present in a molecule of the compound is:
(1) one
(2) two
(3) three
(4) four
Optically active 2-octanol rapidly loses its optical activity when exposed to :
1. | Dilute acid | 2. | Dilute base |
3. | Light | 4. | Humidity |
Which of the following compound is hemiacetal ?
(a)
(d) All of these
Arrange their stabilities of given gem-diols in decreasing order.
(a) I > II > III
(b) III > II > I
(c) I > III > II
(d) III > I > II
1. | 2. | ||
3. | 4. |
What is the product obtained by heating the following allylic ether of phenol?
An acid among the following acids raises the acidity of phenol is:
1. Dil. H2SO4
2. Dil. HCl
3. Conc. H2SO4
4. Conc. CH3COOH
; Compounds (X) and (Y) can be differentiated by:
(1) , NaOI
(2) , then Fehling test
(3) , then Na
(4) Both (b) and (c)
Which of the following compounds give positive Tollen's Test?
1.
2.
3.
4.