1.

(a) Select from the list given below (A to F), the one substance in each case which matches the descriptions given in parts (ii) to (vi). Copy and complete the given grid with your answers as shown for part (i). (i) (ii) (iii) (iv) (v) (vi) A A AmmoniaB Copper oxideC Copper sulphateD Hydrogen chlorideE Conc. sulphuric acidF Lead bromide(i) Although this compound is not a metal hydroxide, its aqueous solution is alkaline in nature.(ii) A solution of this compound is used as the electrolyte when copper is purified.(iii) When this compound is electrolysed in the molten state, lead is obtained at the cathode.(iv) This compound can be oxidized to chlorine.(v) This is used to prepare volatile acids.(vi) This compound can be reduced to copper when heated with coke.

Answer» (a) Select from the list given below (A to F), the one substance in each case which matches the descriptions given in parts (ii) to (vi). Copy and complete the given grid with your answers as shown for part (i).




















(i) (ii) (iii) (iv) (v) (vi)
A

A Ammonia

B Copper oxide

C Copper sulphate

D Hydrogen chloride

E Conc. sulphuric acid

F Lead bromide

(i) Although this compound is not a metal hydroxide, its aqueous solution is alkaline in nature.

(ii) A solution of this compound is used as the electrolyte when copper is purified.

(iii) When this compound is electrolysed in the molten state, lead is obtained at the cathode.

(iv) This compound can be oxidized to chlorine.

(v) This is used to prepare volatile acids.

(vi) This compound can be reduced to copper when heated with coke.


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