The action of chlorine on dry Ca(OH)$$_2$$​ produces which of the following?

Correct option is C

The correct answer is (c) Bleaching powder

Explanation:

Chlorine reacts with dry (slaked lime) calcium hydroxide (Ca(OH)₂) to form bleaching powder (Ca(OCl)₂).

The reaction is as follows:
$$\text{Ca(OH)}_2 + \text{Cl}_2 \rightarrow \text{Ca(OCl)}_2 + \text{H}_2\text{O}$$​​

Information Booster:

Uses of Bleaching Powder

• Water Purification: Disinfects drinking water by killing bacteria and pathogens.
• Textile Industry: Bleaches fabrics and textiles.
• Paper Industry: Used for whitening paper.
• Cleaning Agent: Removes stains and cleans surfaces.
• Odor Control: Eliminates foul odors in sewage and garbage.
• Food Processing: Bleaches flour and some food products.
• Pest Control: Controls pests in agriculture.

Additional Knowledge:

Hydrochloric Acid (HCl):

Reaction: When hydrogen gas reacts with chlorine gas.

Chemical equation: $$H_2(g) + Cl_2(g) \rightarrow 2HCl(g)$$​​

Calcium Chloride (CaCl₂):

Reaction: When calcium reacts with chlorine gas.

Chemical equation: $$Ca(s) + Cl_2(g) \rightarrow CaCl_2(s)$$​​

Calcium Oxide (CaO):

Reaction: When calcium reacts with oxygen.

Chemical equation: $$2Ca(s) + O_2(g) \rightarrow 2CaO(s)$$​​