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If four balloons A, B, C and D are filled with hydrogen, oxygen, helium and nitrogen gases respectively and left in air, which balloon reaches to the highest distance from the earth?

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Important Questions on General Science

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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 139
A change of state directly from solid to gas without changing into liquid state is called _____
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 140
Gases may be distinguished from other forms of matter by their _____
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 143
Which one of the following is used as a purgative?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 144
Which one of the following is the predominant raw material used in the manufacture of cement?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 145
 Rayon is a man-made fibre prepared from:
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 146
What are soaps chemically?
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CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 147
Which smelling substance is added to LPG gas cylinders to help in the detection of gas leakage?
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IMPORTANT
CAPF Assistant Commandants>Chapter 3 - General Science>CHEMISTRY>Q 148
Why is common salt added to soap during its production?