Multiple choice

Which of the following statements is incorrect?

  1. Sodium dissolved in ammonia conducts electricity.

  2. The metallic lustre exhibited by sodium is due to the existence of body centered cubic lattice.

  3. Sodium sulphate is soluble in water.

  4. Sodium oxide is ionic in nature.

  5. Sodium does not exist in free state in nature.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This statement is incorrect. The metallic lustre of any metal is due to the presence of oscillating free electrons in the metal.

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