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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Benzene in the presence of AICl3 produces acetophenone when reacts with
Choose an answer
AcetyI chloride
EthyI benzene
Acetic acid
Ethanoic acic
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Question # 2
The original volume of a gas at 0
° is 273 cm
3
at constant pressure, its volume at 273
°C becomes
Choose an answer
zero cm
3
546 cm
3
446 cm
3
346 cm
3
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Question # 3
Which of the following are not known to form compounds in more than one oxidation state?
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Transition metals
Halogens
Alkali metals
Noble gases
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Question # 4
Electrons in 5d energy level are filled up in case of
Choose an answer
Lanthanides
Transition metals
Actinides
Rare gases
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Question # 5
Which of the following reactants will be required to form ethene from ethyl chloride
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Alcoholic KOH
Alkaline KMnO4
Aqucous KOH
Aqucous NaOH
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Question # 6
The correct value of the gas constant R is close to
Choose an answer
0.082 litre-atm K
-1
mol
-1
0.082 litre-atm
-1
K mol
0.082 litre-atm K
0.082 litre-atm
-1
K mol
-1
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Question # 7
Point out the substance which has maximum vapour pressure at a given temperature?
Choose an answer
Acetone
Water
Ethanol
Acetic acid
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Question # 8
At constant pressure, if the original volume is 546 cm
3
at which temperature the volume of gas 552 cm
3
Choose an answer
1°C
2°C
3°C
4°C
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Question # 9
Which is biopolymer?
Choose an answer
Plastic
Rubber
synthetic fiber
Lipid
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Question # 10
Leachate contains:
Choose an answer
fatty acids
Bacteria
Heavy metals
All of these
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Question # 11
Hydrogen bonding is involved in
Choose an answer
Solubility
Detergents
Biological molecules
All the above
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Question # 12
The change in concentration of reactant or product per unit time is called :
Choose an answer
Rate constant.
Rate of reaction.
Rate equation.
Rate law.
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Question # 13
Which compound shows hydrogen bonding
Choose an answer
C
2
H
6
C
2
H
5
CI
CH
3
-O-CH
3
C
2
H
5
OH
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Question # 14
Which one of the following reactions is not spontaneous
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Question # 15
Wholer prepared urea from
Choose an answer
Ammonia
NH
4
CNO
NH
3
Uric acid
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Question # 16
The wave length of electron as wave is 0.5 nm. What is the wave length in meter
Choose an answer
5 x 10
-9
5 x 10
-12
5 x 10
-6
5 x 10
-10
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Question # 17
Which is the derived lipid?
Choose an answer
Common fats
Vitamin-D
Common oils
Spinolipids
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Question # 18
B-B'-dichloroethyl sulphide is commonly known as
Choose an answer
Mustard gas
Laughing gas
Phosgene gas
Bio gas
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Question # 19
Which of the following discoveries resulted in a version of the Mendeleefs
periodic law
Choose an answer
The nucleus of atom by Rutherford
The elements polonium and radium by the Curies
Atomic numbers by Moseley
x-rays by Roentgen
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Question # 20
The value of charge on electron is
Choose an answer
1.602 x 10
-19
coulombs
1.602 x 10
-18
coulombs
1.602 x 10
-17
coulombs
1.602 x 10
-16
coulombs
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Question # 21
In preparation medhod of carboxylic acids from alkyl halides always carboxylic acid formed which have carbon atoms:
Choose an answer
One less than in R----X
One more than in R---X
Equal to R---X
Double to R----X
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Question # 22
To differentiate isomers we use
Choose an answer
n-
iso-
neo
All of them
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