Berzeilus Rules

Q.

Who was the first scientist to define an element?

1. Antoine Laurent Lavoisier

2. Neils Bohr

3. J. J Thompson

4. Ernest Rutherford

Q.

The symbol of aluminium is $\mathrm{AL}$.

1. True
2. False

Q.

The chemical symbol of Aluminium is ___.

Q. Identify the elements suggested by the Vedas.

1. Fire
2. Water
3. Soil
4. Vacuum
5. Earth
6. Air
7. Sun
8. Ether

Q. Which among the following is the chemical symbol for iron?

1. K
2. Fe
3. Zn
4. Na

Q. The Swedish scientist was the first one to introduce letters to symbolize elements.

1. J.J. Berzelius
2. John Dalton
3. Ernest Rutherford

Q. Which of the following element exhibit variable valency?

1. Iron
2. Aluminium
3. Sodium
4. Potassium