JAMB and WAEC Chemistry questions: Non-metals and their compounds

45 questions with answers and explanations. Tap an option to check yourself.

1. Question 41· Non-metals and their compounds· WAEC

   Carbon dioxide turns lime water milky due to the formation of

   • Acalcium carbonate
   • Bcalcium hydroxide
   • Ccalcium oxide
   • Dcalcium hydrogencarbonate

   Show answer

   Explanation and discussion

2. Question 42· Non-metals and their compounds· JAMB

   When concentrated tetraoxosulphate(VI) acid is added to sugar, the sugar turns black because the acid acts as a

   • Areducing agent
   • Bdehydrating agent
   • Ccatalyst
   • Ddrying agent only

   Show answer

   Explanation and discussion

3. Question 43· Non-metals and their compounds· WAEC

   Chlorine is used in the treatment of water because it

   • Asoftens the water
   • Bkills germs
   • Cadds minerals
   • Dremoves colour only

   Show answer

   Explanation and discussion

4. Question 44· Non-metals and their compounds· JAMB

   The Ostwald process manufactures

   • Atetraoxosulphate(VI) acid
   • Bammonia
   • Ctrioxonitrate(V) acid
   • Dchlorine

   Show answer

   Explanation and discussion

5. Question 45· Non-metals and their compounds· WAEC

   Concentrated sulphuric acid chars sugar because it acts as a

   • Adehydrating agent
   • Breducing agent
   • Ccatalyst
   • Dbase

   Show answer

   Explanation and discussion