Question

Which of the following is true regarding these statements?

Statement 1: Hard water contains dissolved salts of calcium and magnesium.
Statement 2: Hard water lathers easily with soap.

• A. Statement 1 is correct but statement 2 is incorrect
• B. Statement 2 is correct but statement 1 is incorrect
• C. Both statement 1 and statement 2 are incorrect
• D. Both statement 1 and statement 2 are correct

Answer 1

The correct option is A Statement 1 is correct but statement 2 is incorrect

Hard water contains dissolved salts of calcium and magnesium. Thus, hard water does not lather with soap.

Soft water is free from dissolved calcium and magnesium ions. So, they form easy lather with soap.

Hence, statement 1 is correct but statement 2 is incorrect.