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General Knowledge - General Science

Exercise : General Science - Elements and Metals
36.
Which of the following was to be discovered first in the chromospheres of the sun?
Krypton
Xenon
Neon
Helium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Which of the following is in liquid form at room temperature?
Lithium
Sodium
Francium
Cerium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Sodium metal is kept under
petrol
alcohol
water
kerosene
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Which of the following are the ingredients of gun metal?
Iron, Zinc, Titanium
Iron, tin
Iron, Brass, Tin
Copper, Tin
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
From which mineral is radium obtained?
Rutile
Haematite
Limestone
Pitchblende
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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