Existence of Elements

Q.

Name the metals and non-metals present in abundance on the earths crust.

Q. Most of the Earth's crust is made up of non-metals.

1. False
2. True

Q. In which of the following mineral(s) Al is present?

1. Both A and B
2. Magnetite
3. Cryolite
4. Siderite

Q. Identify the metals among the following:

1. Sodium
2. Magnesium
3. Aluminium
4. Gold
5. Silver
6. Carbon
7. Oxygen
8. Nitrogen

Q.

Which of the following is a metal?

1. Gold

2. Helium

3. Oxygen

4. Water

Q.

Which of the following is a metal?

1. Helium

2. Oxygen

3. Water

4. Gold

Q. Which among the following are elements?

1. Chlorine
2. Water
3. Nitrogen
4. Carbon dioxide

Q.

Which of the following is a metal?

1. Gold

2. Water

3. Helium

4. Oxygen