General Science Quiz

1. In fireworks, the green flame is produced because of

1. sodium 

2. barium

3. mercury 

4. potassium

2. Permanent hardness of water can be removed by adding

1. chlorine

2. washing soda

3. potassium permanganate

4. bleaching powder

3. Marsh gas is

1. nitrogen 

2. ethane

3. methane

4. hydrogen

4. Which of the following metals remain in liquid for under normal conditions?

1. Radium

2. Zinc

3. Uranium

4. Mercury

5. Potassium Permanganate is used for purifying drinking water, because

1. it is a sterilising agent

2. it dissolves the impurities of water

3. it is a reducing agent

4. it is an oxidising agent

6. Which of the following is an element?

1. Ruby

2. Sapphire

3. Emerald

4. Diamond

7. The ohms law is -

1. R=E/W

2. R=E/I

3. R=E/Z

4. None of these

8. The damage of the human body due to radiation (χ-rays or γ-rays etc,) is measured in -

1. Rads

2. Rems

3. Roentgen

4. Curie

9. Flywheel is an important part of a steam engine because it -

1. gives strength to the engine

2. accelerates the speed of the engine

3. helps the engine in keeping the speed uniform

4. decreases the moment of inertia

10. An electric bulb has a filament made of -

1. Copper

2. Iron

3. Lead

4. Tungsten

Answers Key:

1. 2
2. 2
3. 3
4. 4
5. 4
6. 4
7. 2
8. 1
9. 3
10. 4