Q.1 The function (S) of DNA in the body is/ are to-
I. Help in the release of energy
II. Control heredity
III. Help in the synthesis of proteins
Select the correct statements (s)
a. I and II are correct
b. I and III are correct
c. II and III are correct
d. I, II and III are correct
Ans. (c)
Q.2 Consider the following statements-
I. All halogens are coloured
II. All halogens are reactive
III. Halogens form ionic compounds only
The correct statement(s) is/are-
a. I only
b. I and II only
c. II and III only
d. II only
Ans. (b)
Q.3 Consider the terms in lists 1 and 2 below.
List –I List-II
A. Sedimentary 1.Chalk
B. Metamorphic 2.Granite
C. Igneous 3. Marble
D. Organic 4. Dolomite
The correct match of terms in lists I and 2 is
A B C D
A. 4 2 3 1
B. 4 3 1 2
C. 4 3 2 1
D. 1 3 2 4
Ans. (c)
Q.4 Match List I (Industrial process) with List II (Industry with which associated) and select the correct answer using the codes given below in the lists :
List I List II
A. Cracking 1.Rubber
B. Smelting 2. Petroleum
C. Hydrogenation 3. Copper
D. Vulcanization 4. Edible fats
Codes :
A B C D
a. 2 3 4 1
b. 3 2 1 4
c. 2 3 1 4
d. 3 2 4 1
Ans. (a)
Q.5 Consider the following types of compounds present in the living systems-
I. Hormones
II. Enzymes
III. Lipids
Out of the above three, the classes of compounds that perform key functional roles in living systems are
a. I and III
b. I, II and III
c. I and II
d. II and III
Ans. (c)
Q.6 Consider the following food materials
I. Cheese
II. Sugar
III. Vinegar
Out of the above three food materials, those obtained by fermentation technology are-
a. Only I
b. I and II
c. I and III
d. I, II and III
Ans. (c)
Q.7 Consider the following statements-
I. A chemical reaction, in general becomes faster at higher temperatures.
II. At higher temperatures, molecular motion becomes more rapid.
a. Only statement I is correct
b. Only statement II is correct
c. Both the statements I and II are correct
d. Both the statements I and II are incorrect
Ans. (c)
Q.8 Consider List I (chemical compound) and List II (function).
List I List II
A. Chloromycetin 1. Vitamin
B. Serpasil 2. Antibiotic
C. Disparlure 3. Tranquilizer
D. Ascorbic acid 4. Agrochemical
The correct match of the list is
A B C D
a. 1 3 2 4
b. 4 3 2 1
c. 2 3 4 1
d. 4 2 3 1
Ans. (c)
Q.9 Consider the following statements-
I. Sugar chars on heating.
II. On heating, sugar loses water.
III. Sugar is a carbohydrate.
IV. Table sugar is made up of glucose and fructose.
The correct statement(s) is /are
a. I only
b. I and III only
c. II and III only
d. I,II,III and IV
Ans. (d)
Q.10 Portland cement is primarily made from-
I. Limestone
II. Certain clay minerals
III. Gypsum.
IV. Silica.
The correct statement(s) is/are
a. I and II only
b. I,II and IV only
c. I,II,III and IV
d. I,II and III only
Ans. (c)
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