Physical Properties of Non Metals

Q.

The non-metal which is a liquid at room temperature is __________.

1. Bromine

2. Oxygen

3. Nitrogen

4. Iodine

Q.

Name a non-metal which is in liquid state at room temperature.

1. Fluorine

2. Oxygen

3. Bromine

4. Sulphur

Q.

Identify the non-metal which exists in liquid state at room temperature $\left({25}^{0}C\right)$.

1. Iodine
2. Caesium
3. Bromine
4. Aluminium

Q.

1. AAS

2. ASA

3. SSS

4. SAS

Q. Which among the following non-metals is a good conductor of electricity?

1. Hydrogen
2. Phosphorus
3. Bromine
4. Graphite

Q. Which among the following is a liquid non-metal?

1. Hydrogen
2. Carbon
3. Bromine
4. Phosphorus

Q. If vapours of dry ammonia gas are brought into contact with red litmus paper, what will happen to the colour of the litmus paper?

1. Litmus paper turns blue
2. Litmus paper turns pink
3. No change in the litmus paper
4. Litmus paper turns yellow

Q. Non-metals are bad conductors of heat and electricity.

1. False
2. True

Q. Helium and neon have higher ionization energies compared to the others. This means that they are .

1. very unstable
2. very stable
3. large in size

Q.

Which of the following is not a non-metal?

1. Hydrogen

2. Carbon

3. Nitrogen

4. Sodium