A. R-F
B. R-C
C. R-Br
D. R-I
Related Mcqs:
- Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?
A. Dows process
B. Friedel & Craft acylation
C. Friedel & Craft alkylation
D. Clemmenson reduction - 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 - A substance which increases the reactivity of enzyme is called_________________?
A. Promoters
B. Inhibitors
C. Stimulators
D. Non-activators - Reactivity due to pi-electrons is present in_________________?
A. alkane
B. alkene
C. alkyne
D. both B & C - In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms__________________?
A. two
B. three
C. one
D. four - The best method of preparation of alkyl halides is a reaction of alcohol with__________________?
A. Zn / HCI
B. SOCl2 / Pyridine
C. PCI3
D. PCI5 - 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 - Alkyl halides undergo a type of reaction_________________?
A. Nucleophilic substitution
B. Nucleophilic addition
C. Elimination
D. both A & C - Melting points of VII-A group elements down the group ____________________?
A. Increase
B. Decrease
C. Remain constant
D. No regular trend - Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?
A. saturated solution
B. solubility
C. unsaturated solution
D. super saturated solution
