Ions

Q.

The positively charged and negatively charged ions are called _______ and _______.

1. Anion and Cation.

2. Cation and Anion.

3. Anion and Radical.

4. Radical and Cation.

Q.

The metal and non-metal that are liquid at room temperature are _____and_____ respectively.

1. mercury, bromine

2. mercury, boron

3. mercury, iodine

4. bromine, boron

Q.

Identify the element(s) that are liquid at room temperature.

1. Nitrogen

2. Mercury

3. Bromine

4. Calcium

Q.

Name one metal that is liquid at room temperature.

Q. Match the following indicators to the respective colour change in the acidic or basic medium:

1. Red (acidic)
2. Yellow (basic)
3. Green (basic)
4. Colourless (acidic)

Q. Match the following indicators to the respective colour change in the acidic or basic medium:

1. Colourless (acidic)
2. Green (basic)
3. Red (acidic)
4. Yellow (basic)