Question

The Compound NaOH is known as caustic soda. It is a colourless crystalline solid, the caustic
is due to
1) Hygroscopic nature
2) Subliming nature
3) Deliquesent nature
4) Photo sensitive nature​

Answer 1

Answer:

Option 2 is correct

Subliming nature

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Answer 2

Option (a) The Compound NaOH is known as caustic soda. It is a colourless crystalline solid, the caustic is due to Hygroscopic nature.

Explanation:

• The compound Sodium hydroxide $NaOH$ is known as Caustic Soda.

• It is generally referred to as Sodium hydroxide.

• It contains sodium ions $Na^{+}$ and hydroxide ion $OH^{-}$

• It is colourless and crystalline solid.

• Other names of sodium hydroxide include ascarite, white caustic and sodium hydrate.

• It is highly soluble in water, readily absorbs moisture and carbon dioxide from air.
• It is hygroscopic in nature.