In Friedel-Crafts reaction , toluene can be prepared by
A
C6H6 + CH3Cl
B
C6H5Cl + CH4
C
C6H6 + CH2Cl2
D
C6H6 + CH3COCl
Explanation
2
AIPMT 2000
MCQ (Single Correct Answer)
Which is maximum stable?
A
1-Butene
B
cis-2-Butene
C
trans-2-Butene
D
All have same stability.
Explanation
This is most stable as the repulsion between two methyl groups is least.
3
AIPMT 2000
MCQ (Single Correct Answer)
Which reagent converts propene to 1-propanol ?
A
H2O, H2SO4
B
B2H6, H2O2, OH$$-$$
C
Hg(OAc)2, NaBH4/H2O
D
Aq. KOH
Explanation
Propene adds to diborane (B2H6) giving an addition product. The addition compound on oxidation gives 1-propanol. Here addition of water takes place according to anti-Markownikoff’s rule.
Questions Asked from Hydrocarbons
On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Indicates No. of Questions
