Question

d) Give reason for the following statements:
i) Copper chloride is an acidic salt.
ii) Turmeric stain on a white shirt turns red when dipped in soap
solution.​

Answer 1

Answer:

Explanation:

Copper(I) chloride, commonly called cuprous chloride, is the lower chloride of copper, with the formula CuCl. The substance is a white solid sparingly soluble in water, but very soluble in concentrated hydrochloric acid. Impure samples appear green due to the presence of copper(II) chloride (CuCl 2).

2.Curry contains turmeric powder and soap is basic in nature. Bases turn turmeric red. Hence, when soap (which is basic in nature) is scrubbed on the stain, the stain turns red. When the cloth is washed with plenty of water, the soap is removed and the yellow colour of the stain reappears.