1 |
SN2reactions can be best carried out with |
primary alkyl halides
secondary alkyl halides
tertiary alkyl halides
All the three
|
2 |
Grignard's reagent is reactive due to |
the presence of halogen atom
the presence of Mg atom
the polarity of C-Mg bond
none of the above
|
3 |
When CO2is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is |
propane
propanoic acid
propanal
propanol
|
4 |
The reactivity order of alkyl halides for a particular alkyl group is |
Fluoride > Chloride > Bromide > iodide
Chloride > Bromide > Fluoride > iodide
Bromide > iodide > chloride > Fluoride
Iodide > Bromide > Chloride > Fluoride
|
5 |
Which compound is formed, when CH3OH reach with CH3- Mg -Br |
Ethane
Methane
Ethanol
Acetone
|
6 |
The reactivity of Grignard's regent is due to |
Polarity of Mg-x bond
Polarity of C-Mg bond
Electro negativity of halogen atom
Presence of Mg-atom
|
7 |
When CO2is made to react with ethyl-magnesium iodide followed by acid hydrolysis, the product formed is |
Propane
Propanoic acid
Propanal
Propanol
|
8 |
Cyanogen chloride reacts with ethyl magnesium bromide to give |
CH<sub>3</sub>CH<sub>2</sub>Cl
CH<sub>3</sub>CH<sub>2</sub>Br
C<sub>4</sub>H<sub>10</sub><sup>+</sup>
CH<sub>3</sub>CH<sub>2</sub>CN
|
9 |
For ----------------- Mechanism, the first step involved is the same |
E1 and E2
E2 and S<sub>N</sub>2
S<sub>N</sub>1 and S<sub>N</sub>2
E1 and S<sub>N</sub>1
|
10 |
SN 2 mechanism involves |
1st order kinetics
2nd order kinetics
3rd kinetics
zero order kinetics
|
11 |
Elimination Bimolecular reactions involve |
Second order kinetics
First order kinetics
Third order kinetics
Zero order kinetics
|
12 |
------------------- is not a nucleophile |
H<sub>2</sub>O
NO<sub>3</sub>
BF<sub>3</sub>
NH<sub>3</sub>
|
13 |
SN2 reactions can be carried out with |
Primary alkylhalide
Secondary alkyhalide
Tertiary alkylhalide
All of these
|
14 |
The most reactive Alkyl halide is |
Alkyl Iodide
Alkyl Bromide
Alkyl fluoride
Alkyl Chloride
|
15 |
In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms |
Two
Three
One
Four
|