-
- 3%
- 0.03%
- 33%
- 0.3%
Sciences MCQs
For what reactions is water a universal solvent?
-
- Biochemical
- Chemical
- Physical
- Nuclear
The volume percentage of nitrogen in air is _____.
-
- 55%
- 68%
- 50%
- 78%
In the electricity meter, the digit to the extreme right is _____.
-
- 1/5th of the Unit
- 1/100th of the Unit
- 1/10th of the Unit
- 1/7th of the Unit
What is used in making of alloys?
-
- Gypsum
- Chromium
- Granite
- Limestone
The major part of natural gas, petroleum and coal consist of _____.
-
- Chlorine
- CFC
- Methane
- Carbon dioxide
Plutonium is used as _____.
-
- Fuel for nuclear fission
- Fuel for nuclear fusion
- Source of chemical energy
- Source of light energy
Which type of Uranium is used in the fission process?
-
- Uranium – 234
- Uranium – 235
- Uranium – 236
- Uranium – 237
The percentage of water in blood is _____.
-
- 70 per cent
- 85 per cent
- 90 per cent
- 95 per cent
The second most abundant metal found in the earth’s crust is _____.
-
- Iron
- Calcium
- Sodium
- Aluminium