Science Trivia Quiz

1. What is the most commonly used bleaching agent?

1. Chlorine
2. Sodium chloride
3. Alcohol
4. Carbon dioxide

2. Which chemical compounds in the air cause acid rain?

1. CO and CO2
2. NO2 and O2
3. SO2 and NO2
4. SO2 and O2

3. Cement is formed by strongly heating a mixture of ___

1. Chalk and graphite
2. Limestone and clay
3. Clay and graphite
4. Limestone and graphite

4. Which chemical is used as a fixer in photography?

1. Sodium thiosulphate
2. Borax
3. Ammonium sulphate
4. Sodium sulphate

5. Which synthetic fibre is known as artificial silk?

1. Nylon
2. Terylene
3. Chiffon
4. Rayon

6. The alcohol used in the preparation of dynamite is____

1. Glycol
2. Ethyl alcohol
3. Methyl alcohol
4. All of these

7. The only material which can be recycled 100% is ____

1. Glass
2. Polythene bag
3. Cement
4. Iron

8. Which of these elements is preserved under water?

1. Sodium
2. Sulphur
3. Red phosphorus
4. White phosphorus

9. Chocolate and cocoa naturally contain high levels of which two metals?

1. Cadmium and mercury
2. Cadmium and lead
3. Lead and cobalt
4. Aluminium and iron

10. Cotton fibres consist of a chemical substance called___

1. Polyvinyl chloride
2. Polyester
3. Cellulose
4. Nylon