Metals and Elements GK Questions – Part 7
61. Which of the following metals remain in liquid for under normal conditions?
A. Radium
B. Zinc
C. Uranium
D. Mercury
Answer:
D. Mercury
62. Potassium Permanganate is used for purifying drinking water, because
A. it is a sterilising agent
B. it dissolves the impurities of water
C. it is a reducing agent
D. it is an oxidising agent
Answer:
D. it is an oxidising agent
63. Sodium metal is kept under
A. petrol
B. alcohol
C. water
D. kerosene
Answer:
D. kerosene
64. Which of the following are the ingredients of gun metal?
A. Iron, Zinc, Titanium
B. Iron, tin
C. Iron, Brass, Tin
D. Copper, Tin
Answer:
D. Copper, Tin
65. From which mineral is radium obtained.
A. Rutile
B. Haematite
C. Limestone
D. PitchblenD.
Answer:
D. PitchblenD.
66. The group of metals Fe, Co, Ni may best called as
A. transition metals
B. main group metals
C. alkali metals
D. rare metals
Answer:
A. transition metals
67. Heavy water is
A. deuterium oxiD.
B. PH7
C. rain water
D. tritium oxiD.
Answer:
A. deuterium oxiD.
68. The variety of coal in which the deposit contains recognisable traces of the original plant material is
A. bitumen
B. anthracite
C. lignite
D. peat
Answer:
D. peat
69. Tetraethyl lead is used as
A. pain killer
B. fire extinguisher
C. mosquito repellent
D. petrol additive
Answer:
D. petrol additive
70. Which of the following is used as a lubricant?
A. Graphite
B. SiliC.
C. Iron OxiD.
D. Diamond
Answer:
A. Graphite
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- Metals and Elements GK Questions – Part 13
- Metals and Elements GK Questions – Part 12
- Metals and Elements GK Questions – Part 11
- Metals and Elements GK Questions – Part 10
- Metals and Elements GK Questions – Part 9
- Metals and Elements GK Questions – Part 8
- Metals and Elements GK Questions – Part 6
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Metals and Elements
- Metals and Elements GK Questions and Answers
- Metals and Elements GK Questions – Part 2
- Metals and Elements GK Questions – Part 3
- Metals and Elements GK Questions – Part 4
- Metals and Elements GK Questions – Part 5
- Metals and Elements GK Questions – Part 6
- Metals and Elements GK Questions – Part 7
- Metals and Elements GK Questions – Part 8
- Metals and Elements GK Questions – Part 9
- Metals and Elements GK Questions – Part 10
- Metals and Elements GK Questions – Part 11
- Metals and Elements GK Questions – Part 12
- Metals and Elements GK Questions – Part 13
- Metals and Elements GK Questions – Part 14
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