This document contains 5 single answer chemistry questions. Question 1 asks about the product of ozonolysis of a hydrocarbon. Question 2 asks about the major product when a compound is treated with bromine. Question 3 asks which reagent cannot be used for alcohol dehydration. Question 4 asks about something that is not true of benzene sulfonation. Question 5 asks which is the fastest reaction. The answers are listed as C, C, D, D, D respectively.

1. Single Answer Questions
1. A hydrocarbon of formula C6 H10 on ozonolysis gives only one carbonyl
compound. The compound cannot be
(a) (b) (c) (d)
2. When 2-methyle-l-butene is treated with Br2 in methanol the major product is a
(a) Dibromide (b) Bromley driu (c) Bromoether (d)
Alkoxyalkanol
3. Which of the following cannot be used as reagents for the dehydration of alcohols
to give alkenes?
(a) H 2 SO4 (b) H 3 PO4 (c) Al2O3 (d)
CrO3
4. Which of the following is not true about sulphonation of benzene?
(a) It is Reversible
(b) The Electrophile is SO3 .
(c) An isotope effect has been observed on using C6 D6 in place of C6 H 6 .
(d) The r, d, s, is the abstraction of proton from the α -complex formed by
reaction of benzene units the electrophile.
5. Which among the following is the fastest reaction?
(a) H 3C − CH = CH 2  H 3C − CHBr − CH 2 Br
→
Br2
Ccl4
(b) H 3C − CH = CH 2  Br CH 2 − CH = CH 2
→
NBS
CCl4
(c) H 3C − CH = CH 2  H 3C − CH OH − CH 2 Br
→
Br2
H 2O
(d)
H 3C − CH = CH − CH 2 − Br  H 3C − CH = CH − CH 2 Mg BR + H 3 C − CH − CH = CH 2
Mg
ether
→
|
MgBr
1. C 2. C 3. D 4. D 5. D