Here you will find GK MCQ Questions for Chemistry GK with Answers PDF Free Download based on the important concepts and topics given in the textbook as per new exam pattern. This may assist you to understand and check your knowledge about the Chemistry GK. Students also can take a free test of the Multiple Choice Questions of Chemistry GK. Each question has four options followed by the right answer.
Question 1.
Which one of the following is an example of a gel ?
A. Cheese
B. Milk
C. Face cream
D. Shaving cream
Ans: C. Face cream
Question 2.
Activated Charcoal is used to remove colouring matter from pure substances by
A. Bleaching
B.Oxidation
C. Adsorption
D. Reduction
Ans: C. Adsorption
Question 3.
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is
A. 2J
B. 4J
C. Infinity
D. 0
Ans: D. 0
Question 4.
The new strain of bacteria produced by biotechnology in alcohol industry is
A. Escherichia coli
B. Saccharomyces cerevisiae
C. Bacillus subtilis
D. Pseudomonas putida
Ans: D. Pseudomonas putida
Question 5.
A substance which readily forms colloidal solution in contact with water is called
A. Extrinsic colloid
B. Associated colloid
C. Hydrophobic colloid
D. Hydrophilic colloid
Ans: D. Hydrophilic colloid
Question 6.
The molecular mass of a gas is
A. Twice its vapour pressure
B. Equal to its vapour pressure
C. Half its vapour pressure
D. Not related to its vapour pressure
Ans: A. Twice its vapour pressure
Question 7.
The Fungus which is used in the alcohol industry is
A. Mushroom
B. Candida Aibicans
C. Yeast
D. Rhizopus
Ans: C. Yeast
Question 8.
Molasses a by-product in the manufacture of sugar, is converted into
A. Alcohol
B. Paper
C. Fuel
D. Pulp
Ans: A. Alcohol
Question 9.
Peptization is a process of
A. Precipitation of colloidal particles
B. Purification of colloids
C. Protection of colloidal solution
D. Dispersing precipitates into colloidal solution
Ans: D. Dispersing precipitates into colloidal solution
Question 10.
The value of gas constant R in Ergs deg–1 mole–1 is
A. 8.314 × 107
B. 8.341 × 107
C. 8.413 × 107
D. 4.183 × 107
Ans: A. 8.314 × 107
Question 11.
Which of the following is used to denature ethanol ?
A. Methyl alcohol
B. Propyl alcohol
C. Phenol
D. Methane
Ans: A. Methyl alcohol
Question 12.
Denatured spirit is ethanol mixed with
A. Petrol
B. Kerosene
C. Water
D. Pyridine
Ans: D. Pyridine
Question 13.
What do you understand by the term Espuma ?
A. Foam
B. Soap
C. Salt
D. Calcium
Ans: A. Foam
Question 14.
The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas
A. Remains unchanged
B. Will be doubled
C. Will increase four-fold
D. Will be reduced to half
Ans: C. Will increase four-fold
Question 15.
Ethanol containing 5% water is known as
A. Rectified spirit
B. Denatured spirit
C. Methylated alcohol
D. Power alcohol
Ans: A. Rectified spirit
Question 16.
Rectified spirit is :
A. 95% ethyl alcohol
B. 100% ethyl alcohol
C. Methylated spirit
D. Tincture iodine
Ans: A. 95% ethyl alcohol
Question 17.
Cloud is a colloidal dispersion of
A. Air in a dispersion medium of water
B. Fog in a dispersion medium of water
C. Mist in a dispersion medium of air
D. Water drops in a dispersion medium of air
Ans: D. Water drops in a dispersion medium of air
Question 18.
Isobars are lines joining places having equal
A. Rainfall
B. Pressure
C. Population
D. Height above sea-level
Ans: B. Pressure
Question 19.
Alcohol prepared by the distillation of wood is :
A. Propyl alcohol
B. Methyl alcohol
C. Ethyl alcohol
D. Glycerol
Ans: B. Methyl alcohol
Question 20.
The reaction intermediate formed during the preparation of diethyl ether from ethanol by treatment with H2SO4 is
A. Carbanion
B. Carbocation
C. Carbene
D. Free radical
Ans: B. Carbocation
Chemistry GK MCQs all set
- Chemistry GK MCQs Set-1
- Chemistry GK MCQs Set-2
- Chemistry GK MCQs Set-3
- Chemistry GK MCQs Set-4
- Chemistry GK MCQs Set-5
- Chemistry GK MCQs Set-6
- Chemistry GK MCQs Set-7
- Chemistry GK MCQs Set-8
- Chemistry GK MCQs Set-9
- Chemistry GK MCQs Set-10
- Chemistry GK MCQs Set-11
- Chemistry GK MCQs Set-12
- Chemistry GK MCQs Set-13
- Chemistry GK MCQs Set-14
- Chemistry GK MCQs Set-15
- Chemistry GK MCQs Set-16
- Chemistry GK MCQs Set-17
- Chemistry GK MCQs Set-18
- Chemistry GK MCQs Set-19
- Chemistry GK MCQs Set-20
- Chemistry GK MCQs Set-21
- Chemistry GK MCQs Set-22
- Chemistry GK MCQs Set-23
- Chemistry GK MCQs Set-24
- Chemistry GK MCQs Set-25
- Chemistry GK MCQs Set-26
- Chemistry GK MCQs Set-27
- Chemistry GK MCQs Set-28
- Chemistry GK MCQs Set-29
- Chemistry GK MCQs Set-30
- Chemistry GK MCQs Set-31
- Chemistry GK MCQs Set-32
- Chemistry GK MCQs Set-33
- Chemistry GK MCQs Set-34
- Chemistry GK MCQs Set-35
- Chemistry GK MCQs Set-36
- Chemistry GK MCQs Set-37
- Chemistry GK MCQs Set-38
- Chemistry GK MCQs Set-39
- Chemistry GK MCQs Set-40
- Chemistry GK MCQs Set-41
- Chemistry GK MCQs Set-42
- Chemistry GK MCQs Set-43
- Chemistry GK MCQs Set-44
- Chemistry GK MCQs Set-45
- Chemistry GK MCQs Set-46
- Chemistry GK MCQs Set-47
- Chemistry GK MCQs Set-48
- Chemistry GK MCQs Set-49
- Chemistry GK MCQs Set-50
- Chemistry GK MCQs Set-51
- Chemistry GK MCQs Set-52
- Chemistry GK MCQs Set-53
- Chemistry GK MCQs Set-54
- Chemistry GK MCQs Set-55
- Chemistry GK MCQs Set-56
- Chemistry GK MCQs Set-57
- Chemistry GK MCQs Set-58
- Chemistry GK MCQs Set-59
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