Question

Consider the following statements.
A. Baking soda is an acidic salt whereas washing soda is a basic salt.
B. The aqueous solution of common salt does not change the colour of either red litmus solution or blue litmus solution.
C. Amla tastes sour whereas soap solution is bitter in taste.
D. The water extract of spinach does not change the colour of blue litmus solution.
Which of the statements are correct?

Answer 1

Hint: When an acid reacts with a base, they have the tendency to form a salt. For instance, when sodium hydroxide reacts with hydrochloric acid in water, they form sodium chloride, a salt. Salts come in three different forms: basic, neutral and acid salts. When a strong base reacts with a strong acid, a neutral salt is produced. When a strong base reacts with a weak acid, a basic salt is reduced. When a strong acid reacts with a weak base, an acidic salt is produced.

Complete step-by-step answer:Baking soda is an acidic salt whereas, washing soda is a basic salt. On the other hand, the aqueous solution of common salt is neutral by nature as shown in the following equation:
$NaCl(s) + {H_2}O(l) \to N{a^ + }(aq) + C{l^ - }(aq)$
Thus, the aqueous solution of common salt does not change the colour of either red litmus solution or blue litmus solution.
Moreover, Amla comprises ascorbic acid thus tastes sour whereas, soap contains base that is caustic soda or sodium hydroxide due to which it tastes bitter. While spinach comprises oxalic acid. Thus, aqueous solution of spinach changes the colour of blue litmus into red.
Conclusively, the correct statements are: A, B and C.

Note:The acid or base properties of a salt can be estimated by writing down the formulae and analysing the strength of parent acid and base that can be employed to make the salt. Acids when reacted with metals produce hydrogen gas. These substances release hydroxide ions when dissolved in water.