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
Chloroethane reacts with X to form diethyl ether. What is X ?
NaOH
H2SO4
C2H5ONa
Na2S2O3
C.
C2H5ONa
When chloroethane reacts with C2H5ONa to form diethyl ether. The reaction is-
C2H5Cl + NaOC2H5 C2H5OC2H5 + NaCl
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
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