Question 25 - MCQs from NCERT Exemplar - Chapter 2 Class 10 - Acids, Bases and Salts

Match the chemical substances given in Column (A) with their appropriate application given in Column (B) 

(A) A—(ii), B—(i), C—(iv), D—(iii)

(B) A—(iii), B—(ii), C—(iv), D—(i)

(C) A—(iii), B—(iv), C—(i), D—(ii)

(D) A—(ii), B—(iv), C—(i), D—(iii)

Answer

• Bleaching Powder i.e. CaOCl ₂ is used for decolorisation
• Baking soda i.e. NaHCO ₃ is an antacid (helps neutralize acidity in stomach)
• Washing soda i.e. Na ₂ CO ₃ .10H ₂ O is used in the preparation of glass
• Sodium chloride i.e. NaCl is used in the production of Cl ₂ and H ₂ by chlor alkali process . 

So, the correct answer is (c) A—(iii), B—(iv), C—(i), D—(ii)