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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Fatty acids are:
Choose an answer
Aliphatic mono-carboxylic acids
Di-carboxylic acids
Tri-carboxylic acids
Tetra carboxylic acids
Poly carboxylic acids
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Question # 2
The molar volume of CO
2
is maximum at:
Choose an answer
S.T.P. (0
∘
C and 1 atm)
127
∘
C and 1 atm
0
∘
C and 2 atm
273
∘
C 2atm
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Question # 3
The concentration of dissolved molecular oxygen in water which acts as the most important oxidizing agent ranges from
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2 ppm - 6 ppm
2 ppm - 4 ppm
4 ppm - 8 ppm
2 ppm - 3 ppm
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Question # 4
For N2: +3H2<--------> 2NH3, if Kc is 1 than value of Kp at 273K would be
Choose an answer
1/22.414
1/(22.414)2
22.414
11.207
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Question # 5
Ecosytem is a smaller unity of:
Choose an answer
nydosphere
biosphere
lithosphere
atmosphere
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Question # 6
A combination of glucose and fructose is called
Choose an answer
sucrose
table sugar
a & b
Lactose
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Question # 7
The volume of given mass of gas is directly proportional to absolute temperature when pressure is kept constant this is called
Choose an answer
Boyle's law
Charles's law
Graham's law
Dalton's law
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Question # 8
Velaric acid is obtained from a herb velarian, its IUPAC name is
Choose an answer
Propionic acid
Pentanoic acid
Butyric acid
Caporic acid
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Question # 9
In the reaction A2 (g) + 4B2 (g) <-----------> 2AB4 (g) such that ∆H < 0, the formation of AB4(g) will be favoured at
Choose an answer
Low temperature and high pressure
Low temperature and low pressure
High temperature and low pressure
High temperature and high pressure
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Question # 10
The layer of earth around the earth is called:
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Atmosphere
Hydrosphere
Lithosphere
Biosphere
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Question # 11
Carbon Monoxide is:
Choose an answer
colouriess
orderless
high toxic
All of these
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Question # 12
Which statement is true about order of reaction :
Choose an answer
Order of reaction can only be determined by an experiment.
Order of reaction can be determined from a balance equation only.
Order of reaction increase by increasing temperature.
Order of reaction must be in whole number and not in fraction.
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Question # 13
The energy of ionization of an atom is the energy difference between orbital
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Question # 14
Environmental pollution affects
Choose an answer
Biotic components
Plants only
Man only
Biotic and abiotic components of environment
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Question # 15
Catenation is a process in which carbon shows the properties of making
Choose an answer
Multiple bonds
Hybridization
Long chains or rings of carbon atom
Showing isomerism
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Question # 16
Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water
Choose an answer
Low value
Higher value
Both values
None of these
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Question # 17
During electrolysis, electrons are :
Choose an answer
Lost by anions and gained by cations
Gained by anions and lost by cations
Gained only
Lost only
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Question # 18
Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects:
Choose an answer
Eyes
Ears
Stomach
Nose
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Question # 19
The unit of rate constant K is
mole
-1
dm
3
for a chemical reaction, the order of reaction is :
Choose an answer
Order of reaction can determined by an experiment
Order of reaction can determined from a balance equation only.
Order of reaction can determined increases by increasing temperate.
Order of reaction must be in whole number and not in fraction.
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Question # 20
Cyanoform is ________ acid in nature than the chloroform. The missing word is
Choose an answer
Stronger
Weaker
Amphoteric
Neutral
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Question # 21
Which of the following represents elements in order of increasing atomic size?
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I, Br, Cl
Na, Mg, C
C, N, O
Li, Na, K
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Question # 22
Which one of the following pentafluorides cannot be formed?
Choose an answer
PF
5
AsF
5
SbF
5
BiF
5
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