SN2 reaction can be best carried out with__________________?
A. primary alkyl halide
B. secondary alkyl halide
C. tertiary alkyl halide
D. all
Chemistry Mcqs
When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _________________?
When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _________________?
A. propane
B. propanoic acid
C. propanal
D. propanol
When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?
When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?
A. 2 moles of ethane
B. 1 mole of ethane
C. 2 moles of butane
D. 1 mole of butane
Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?
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
Which one is not a nucleophile ?
Which one is not a nucleophile ?
A. C2H5O-
B. SCN-
C. NH3
D. H3C+
Which alkyl halide has the highest reactivity for a particular alkyl group ?
Which alkyl halide has the highest reactivity for a particular alkyl group ?
A. R-F
B. R-C
C. R-Br
D. R-I
50% inversion of configuration of molecules take place in a___________________?
50% inversion of configuration of molecules take place in a___________________?
A. E1 – reaction
B. E2 – reaction
C. SN1 – reaction
D. SN2 – reaction
The best method of preparation of alkyl halides is a reaction of alcohol with__________________?
The best method of preparation of alkyl halides is a reaction of alcohol with__________________?
A. Zn / HCI
B. SOCl2 / Pyridine
C. PCI3
D. PCI5
In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms__________________?
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
Which one of the following molecules does not form alcohol when reacts with Grignard reagent ?
Which one of the following molecules does not form alcohol when reacts with Grignard reagent ?
A. formaldehyde
B. acetaldehyde
C. propanone
D. carbondioxide