Question

Which of the following is deliquescent ?

• A. $ZnCl_2$
• B. $Hg_2Cl_2$
• C. $HdCl_2$
• D. $CdCl_2$

Answer 1

Answer: (A)

$ZnCl_2$

Answer 2

Part 1 Properties of deliquescent substance:
- Certain water-soluble substances, when exposed to the atmosphere at ordinary temperature.
- Absorb moisture from the atmospheric air to become moist.
- It ultimately dissolved in the absorbed water, forming a saturated solution.
- Such substance is called deliquescent substances.
Part 2 Find deliquescent substance from given option :
- Zinc chloride $ZnCl _{2}$, is a colourless or white coloured chemical compound that is highly soluble in water.
- When it is exposed to the atmosphere at any temperature, absorb moisture from the atmospheric air to become moist.
- Ultimately dissolve in the absorbed water, forming a saturated solution.
Hence, Zinc chloride $ZnCl _{2}$, is a deliquescent substance.