Question

Which of the following is least soluble
a. sodium hydroxide
b. ammonium hydroxide
c. calcium hydroxide
d. potassium hydroxide

Answer 1

Answer:

b. ammonium hydroxide is least soluble

Explanation:

Hope it will help you

Answer 2

(a) Sodium hydroxide is least soluble.

Explanation:

• Sodium hydroxide $(NaOH)$ is a highly caustic base and alkali, which degrades proteins at normal ambient temperatures and can cause severe chemical burns.  

• It is highly soluble in water and absorbs moisture and carbon dioxide from the air immediately.  

• As one of the simplest hydroxides, sodium hydroxide is often used in combination with neutral water and acid hydrochloric acid to show pH levels to chemistry students.  

• Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents and drain cleaning.
• Sodium hydroxide, also known as lye and caustic soda, is a mineral compound with $NaOH$ formation.  

• It is a white solid ionic compound containing sodium cations $Na$ and hydroxide anions $OH.$

$NaOH$ Solubility:

• $NaOH$ is soluble in water.
• But $NaOH$ is least soluble in nonpolar solvents like benzene, toluene, chloroform, diethyl ether and is slowly soluble in propylene glycol.