A. 2 moles of ethane
B. 1 mole of ethane
C. 2 moles of butane
D. 1 mole of butane
Alkyl Halides
Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?
A. formaldehyde
B. ketone
C. ethylene epoxide
D. both A & C
Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?
A. primary alcohol
B. secondary alcohol
C. tertiary alcohol
D. dihydric alcohol
What is the order of kinetics in the SN1 mechanism ?
A. Zero
B. First
C. Second
D. Third
Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?
A. CH3-X
B. (CH3)3 C-CH2 – X
C. (CH3)2 CH – X
D. (CH3)3 C – X
Grignard reagent is reactive due to___________________?
A. the presence of halogen atom
B. the presence of magnesium atom
C. the polarity of C-Mg bond
D. all
Which alkyl halide has the highest reactivity for a particular alkyl group ?
A. R-F
B. R-C
C. R-Br
D. R-I
SN2 reaction can be best carried out with__________________?
A. primary alkyl halide
B. secondary alkyl halide
C. tertiary alkyl halide
D. all
Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?
A. they have an electrophilic carbon
B. they have an electrophilic carbon & a good leaving group
C. they have an electrophilic carbon & a bad leaving group
D. they have a nucleophilic carbon & a good leaving group
The rate of E1 reaction depends upon______________________?
A. the concentration of substrate
B. the concentration of nucleophile
C. the concentration of substrate as well as nucleophile
D. base the concentration of substrate as well as nucleophile
