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General Science

1. Which of the following is an alloy of 'Tin + Lead + Antimony'?

A . Billon
B . Pewter
C . Solder
D . Terne

2. Which one of the following correctly defines the state of glass?

A . Crystaline glass
B . Supercooled liquid
C . Condensed gas
D . Liquid crystal

3. Which of the following gases is used in Cigarette lighters?

A . Butane
B . Methane
C . Propane
D . Radon

4. Ozone layer above the surface of Earth provides a shield against:

A . X-rays
B . UV rays
C . Infrared rays
D . None of the above

5. Which of the following is NOT a gaseous air polluatant?

A . Oxide of Sulphur
B . Oxide of Nitrogen
C . Hydrocarbon
D . Smoke

6. Ground water in the Bengal basin is mostly contaminated by:

A . Chromium
B . Lead
C . Cadmium
D . Arsenic

7. Which of the following gases has the greatest impact on global climate change?

A . Ozone
B . Oxygen
C . Carbon dioxide
D . Nitrogen

8. What does 'Gobar gas' contains?

A . Butane
B . Methane
C . Octane
D . Propane

9. Which of the following is the most abundant element in the universe?

A . Carbon
B . Hydrogen
C . Nitrogen
D . Oxygen

10. Which of the following compounds is added to impart red colour to glass?

A . Chromium oxide
B . Iron oxide
C . Magnesium oxide
D . Selenium oxide
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