1. Priestley
2. Lavoisier
3. Dalton
4. Mendeleeff
2.The most abundant element in earth crust is ?
1. iron
2. magnesium
3. calcium
4. aluminium
3.Which one of the following is not an element?
1. diamond
2. ozone
3. silica
4. graphite
4. Who is known as “Father of Medicine”?
1. Aristotle
2. Theophrastus
3. Hippocrates
4. Edward Jenner
5.The term “Biology” is derived from the language ?
1. Latin
2. French
3. German
4. Greek
6. The element common to all acids is
1. carbon
2. hydrogen
3. oxygen
4. sulphur
7. Gobar gas contains mainly
1. methane
2. carbon dioxide
3. butane
4. carbon monoxide
8.The most malleable metal is
1. Silver
2. Gold
3. Aluminium
4. Sodium
9.Tetraethyl lead is used as
1. mosquito repellent
2. painkiller
3. fire extinguisher
4. petrol additive
10.Which of the following is used in beauty parlours for hair setting?
1. Chlorine
2. Sulphur
3. Phosphorus
4. Silicon
Answers
1-2
2-4
3-3
4-3
5-4
6-2
7-1
8-2
9-4
10-2