107. Which of the following gives an aldehyde on
dry distillation?
(A) Calcium acetate + calcium benzoate
(B) Calcium formate + calcium acetate
(C) Calcium benzoate
(D) Calcium acetate
Answer:: (B)
108. Which of the following does not give benzoic
acid on hydrolysis?
(A) phenyl cyanide
(B) benzoyl chloride
(C) benzyl chloride
(D) methyl benzoate
Answer:: (C)
109. A compound is formed by elements
A and B. This crystallises in the cubic structure where the A atoms are at the
comers of the cube and B atoms are at the body centres. The simplest formula of
the compound is
(A) AB
(B) A6B
(C) A8B4
(D) AB6
Answer:: (A)
110 A compound of 'A' and 'B' crystallises in a
cubic lattice in which the 'A' atoms occupy the lattice points at the comers of
the cube. The 'B' atoms occupy the centre of each face of the cube. The
probable empirical formula of the compound is
(A) AB
(B) AB3
(C) AB2
(D) A3B
Answer:: (B)
111. A covalent molecule AB3 has pyramidal
structure. The number of lone pair and bond pair electrons in the molecule are
respectively
(A) 3 and 1
(B) 1 and 3
(C) 2 and 2
(D) 0 and 4
Answer:: (B)
112. A diabetic person carries a pocket of
Glucose with him always, because
(A) Glucose reduces the blood sugar level.
(B) Glucose increases the blood sugar level
almost instantaneously.
(C) Glucose reduces the blood sugar level
slowly.
(D) Glucose increases the blood sugar level
slowly.
Answer:: (B)
113. A dibromo derivative of an alkane reacts
with sodium metal to form an alicyclic hydrocarbon. The derivative is ______.
(A) 2, 2 - dibromobutane
(B) 1, 1 - dibromopropane
(C) 1, 4 - dibromobutane
(D) 1, 2 - dibromoethane
Answer:: (C)
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