Consider the following reactions,
C2H2 A
A B
B C6H5-N=N-C6N5
A and B are
A = C2H4; B = C6H6
A = C2H6; B = C6H5NH2
A = C2H4; B = C6H5NH2
A = C6H6; B = C6H5NO2
Formation of alkane by the action of zinc on alkyl halide is called
Wurtz reaction
Kolbe's reaction
Ulmann's reaction
Frankland reaction
In chloroethane, the carbon bearing halogen is bonded to ...... hydrogen (s). It is called ........ alkyl halide.
Two, primary
Three, primary
Two, secondary
One, tertiary
What is the minimum quantity (in grams) of methyl iodide required for preparing one mole of ethane by Wurtz reaction ? (Atomic weight of iodine = 127)
142
568
326
284
The following reaction is an example of .......... reaction-
C2H4Br2 → C2H2
addition
dehydrohalogination
substitution
debromination
B.
dehydrohalogination
The given reaction is an example of dehydrohalogination. It can be written as-
Match the following lists
List I | List II |
(A) Benzene | 1. Phosegen |
(B) Ethylene | 2. Silver mirror |
(C) Acetaldehyde | 3. Mustard gas |
(D) Chloroform | 4. (4n+2)Π electron |
5.Carbylamine |
The correct answer is
A B C D
4 3 2 1
A B C D
3 2 1 4
A B C D
2 4 5 3
A B C D
5 1 4 3
Match the following lists:
List- I | List- II |
A. Grignard reagent | 1. H2/ Pd-BaSO4 |
B. Clemmensen reduction | 2. N2H4 | KOH | (CH2)2-OH |
C. Rosenmund reduction | 3. CH3Mg X |
D. Wolff-Kishner reduction |
4. Zn-Hg | conc. HCl 5. H2| Ni |
A - 3; B - 4; C - 2; D - 1
A - 3; B - 4; C - 1; D - 2
A - 2; B - 1; C - 4; D - 5
A - 5; B - 3; C - 2; D - 1
The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomeric.
2R, 3R and 2S, 3S
2S, 3S and 2S, 3R
2R, 3R and 2R, 3S
2S, 3S and 2R, 3S
The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?
Boiling point
Specific rotation
Density
Cl—Cl bond length