Acids, Bases and Salts 10th Class Chemistry Chapter 10 Solved Exercise Short Questions Q 1 : Name three common household substances having ​ a. pH value greater than 7 Caustic soda ( NaOH ) Milk of magnesia ( Mg(OH)2 ) Ca (OH)2 Soap Detergents Shampoo b. pH value less than 7  Sour milk ( lactic acid ) … Continue reading 10th Class Chemistry Chapter 10 Solved Exercise Short Questions