Question 1.
Major portion of the earth’s crust is mainly constituted by
A. Oxygen and Iron
B. Oxygen and Silicon
C. Silicon and Iron
D. Silicon and Aluminium
Ans: B. Oxygen and Silicon
Question 2.
Which of the following could be used as fuel in propellant or rockets ?
A. Liquid Hydrogen + Liquid Nitrogen
B. Liquid Oxygen + Liquid Argon
C. Liquid Nitrogen + Liquid Oxygen
D. Liquid Hydrogen + Liquid Oxygen
Ans: D. Liquid Hydrogen + Liquid Oxygen
Question 3.
Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
A. Helium
B. Nitrogen
C. Oxygen
D. Hydrogen
Ans: D. Hydrogen
Question 4.
The lightest gas which is non-inflammable is
A. Hydrogen
B. Helium
C. Oxygen
D. Nitrogen
Ans: B. Helium
Question 5.
In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins?
A. Copper
B. Iron
C. Aluminium
D. Titanium
above
Question 6.
Which gas is used for converting vegetable oils into saturated fats ?
A. H2
B. O2
C. Cl2
D. SO2
Ans: A. H2
Question 7.
When Hydrogen starts burning in air, it produces ?
A. Ammonia
B. Water
C. Methane
D. Carbonic Acid
Ans: B. Water
Question 8.
Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process :
A. Hydrolysis
B. Oxidation
C. Hydrogenation
D. Ozonolysis
Ans: C. Hydrogenation
Question 9.
Name two elements that find wide application in transistor industry.
A. Silicon and Germanium
B. Carbon and Platinum
C. Iridium and Germanium
D. Tungsten and Platinum
Ans: A. Silicon and Germanium
Question 10.
Which of the following gases will effuse out of football bladder most quickly ?
A. He
B. H2
C. N2
D. O2
Ans: B. H2
Question 11.
The gas which turns into liquid at the lowest temperature among the following is
A. Hydrogen
B. Oxygen
C. Helium
D. Nitrogen
Ans: A. Hydrogen
Question 12.
Which among the following is pure matter ?
A. Carbon dioxide
B. Brass
C. Air
D. Iron
Ans: A. Carbon dioxide
Question 13.
Which one is the naturally occuring heaviest element?
A. Mercury
B. Thorium
C. Uranium
D. Protactinium
Ans: C. Uranium
Question 14.
The property of hydrogen which distinguishes it from alkali metals is
A. Its electropositive character
B. Its affinity for non-metal
C. Its reducing character
D. Its non-metallic character
Ans: D. Its non-metallic character
Question 15.
The gas that is used in the manufacture of vanaspati ghee is :
A. Oxygen
B. Carbon dioxide
C. Hydrogen
D. Nitrogen
Ans: C. Hydrogen
Question 16.
The National Chemical Laboratory (India) is located in
A. Mumbai
B. Bangaluru
C. Hyderabad
D. Pune
Ans: D. Pune
Question 17.
Which of the following will replace hydrogen from acids to form salts ?
A. S
B. Na
C. Ag
D. P
Ans: B. Na
Question 18.
Hydrogen is not found in atmosphere because
A. It is highly inflammable
B. It is the lightest gas
C. It is absorbed by plants
D. It immediately combines with oxygen to form water
Ans: B. It is the lightest gas
Question 19.
Which one of the following metals does not react with water to produce Hydrogen ?
A. Potassium
B. Cadmium
C. Sodium
D. Lithium
Ans: B. Cadmium
Question 20.
Who is known as the ‘father of modern chemistry’?
A. John Dalton
B. Robert Boyle
C. Antoine Lavoisier
D. Democritus
Ans: C. Antoine Lavoisier
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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