1.
|
Which of the
two ions from the list given below that have the geometry that is explained
by the same hybridization of orbitals, ?
(A) and
(B) and
(C) and
(D) SCN-
and
|
Answer: (B)
|
2.
|
Which one of
the following conformations of cyclohexane is the least stable?
(A) Boat
(B) Half-chair
(C) Chair
(D) Twisted-boat
|
Answer: (B)
|
3.
|
Which one of
the following conversions involve change in both hybridization and shape?
(A) NH3 ® NH
(B) CH4 ® C2H6
(C) H2O ® H3O+
(D) BF3 ®BF
|
Answer: (D)
|
4.
|
Which one of the following does NOT involve coagulation?
(A) Peptization
(B) Formation of delta regions
(C) Clotting of blood by the use of ferric
chloride
(D) Treatment of drinking water by potash alum
|
Answer: (A)
|
5.
|
Which one of
the following forms propanenitrile as the major product?
(A) Propyl bromide + alcoholic KCN
(B) Ethyl bromide + alcoholic KCN
(C) Ethyl bromide + alcoholic AgCN
(D) Propyl bromide + alcoholic AgCN
|
Answer: (B)
|
6.
|
Which one of
the following has maximum number of atoms of oxygen?
(A) 2 g of water
(B) 2 g of sulphur dioxide
(C) 2 g of carbon dioxide
(D) 2 g of carbon monoxide.
|
Answer: (A)
|
7.
|
Which one of the following is a molecular crystal?
(A) Quartz
(B) Rock salt
(C) Diamond
(D) Dry ice
|
Answer: (D)
|
8.
|
Which one of the following is a second order reaction?
(A) CH3COOCH3 + NaOH ® CH3COONa + H2O
(B) H2 + Cl2 2HCl
(C) NH4NO3 ® N2 + 3H2O
(D) H2 + Br2 ® 2HBr
|
Answer: (A)
|
9.
|
Which one of
the following is an example for homogeneous catalysis?
(A) Manufacture of ammonia by Haber's process
(B) Manufacture of sulphuric acid by contact
process
(C) Hydrogenation of oil
(D) Hydrolysis
of sucrose in presence of dilute hydrochloric acid
|
Answer: (D)
|
10.
|
Which one of the following is employed as
Antithistamine?
(A) Omeprazole
(B) Chloramphenicol
(C) Diphenyl hydramine
(D) Norothindrone
|
Answer: (C)
|
Sample MCQ Questions for Chemistry Placement Test
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