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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The rate of reaction between A and B increases by a factor of 100, when the concentration of A is increased 10 folds, the order of reaction with respect to A is
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10
1
4
2
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Question # 2
The structural isomerism arises due to the difference in the
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Number of atoms in the molecule
Arrangements of atoms in the molecule
Number as well as arrangement of atoms in the molecule
Spatial arrangement of atoms
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Question # 3
One dm3 of H2 and O2: has different masses but no. of particles are
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same
H2 has greater
different
O2 has greater
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Question # 4
Which of the following statements is incorrect about vitamins
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often function as coenzymes
molecules contain at least one ring structure
are often synthesized by the body
are polyfunctional compounds
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Question # 5
The B.P. of compound is mostly raised by
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dipole-induced dipole interactions
london dispersion forces
intramolecular H-bonding
intermolecular H-bonding
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Question # 6
The transition temperature of tin is
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95.5 C°
13.2 C°
13.2°C
128.5°
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Question # 7
Zwitter ion are
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Basic
Acidic
Neutral
Carry both -ve and +ve charges
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Question # 8
Plastics are a pollution problem because many plastics:
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Are made from petroleum
Are very inflammable
Burn to produce toxic fumes
Decompose to produce toxic products
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Question # 9
Which of the following is Homopolymer
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Polyvinyl acetate
Acrylic resin
Polyester resins
Both A and C
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Question # 10
The value of general gas constant R is derived from:
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Newton's Cooling law
Maxwell's law
Avogadro's law
Charle's law
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Question # 11
Which one of the following metals can replace the Copper from aqueous solution of its salt more easily?
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Cd
Fe
Zn
Na
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Question # 12
Which of the following metal requires radiation of highest frequency to cause emission of electrons?
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Na
Mg
K
Ca
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Question # 13
Which of these polymers is an addition polymer
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Nylon 6,6
Polystyrene
Terylene
Epoxy resin
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Question # 14
Which one is not a pollutant normally?
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Hydrocarbons
Carbon dioxide
Carbon monoxide
Sulphur dioxide
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Question # 15
Pick up the correct statement
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CO which is major pollutant resulting from the combustion of fuels in automobile plays a major role in photochemical smog
Classical smog has an oxidizing character while the phtochemical smog is reducing in character
Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours
During formation of smog the level of ozone in the atmosphere goes down
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Question # 16
In the atmosphere, CO
2
is about
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0.01%
0.03%
0.05%
0.09%
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Question # 17
Which reaction is too vigorous to control
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Chlorination
Bromination
Iodination
Fluorination
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Question # 18
Which of the following reagents is used to distinguish between methanoic acid and ethanoic acid?
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Amm. silver nitrate solution
Neutral ferric chloride
Sodium hydroxide solution
Sodium carbonate solution
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Question # 19
What is the total number of different chloroethanes of formula C
2
H
6-n
Cl
n
possible (n may be 1 to 6)
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6
8
9
10
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Question # 20
Hydrolysis of trichloromethane with aqueous KOH gives
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Potassium formate
Acetylene
Chloral
Methanol
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Question # 21
The ionic product of H
+
ions and OH
-
in water is called ionization constant of water Kw. The value of Kw at 25°C is
Choose an answer
0.11 x 10
-14
0.30 x 10
-14
1.0 x 10
-14
3 x 10
-14
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Question # 22
Which is possible in ethers?
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Reactivity high
Oxidation and reduction
Reactivity towards bases
Towards acids
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