(7 marks)
- Match each Ofthe items in List A with the appropriate items
given in IÅt B. List B
List A a reaction (i) reduces chlorine to hydrogen chloride
(a) Heat liberated by
(b) Sodium chloride (ii) arnmonia can be formed
Electrolytic technique (iii) mild oxidizing agent
(d) Nitrides react with water (iv) assigned by negative sign
(e) Sulphur dioxide (v) indicated by the value ofpKa
(f) Iodine (vi) employed for the seasoning of foods
(g) Strength of acid (vii) gives the metals of the highest purity - Define the following: (8 marks)
(a) Electrons
(b) Pressure of gas
Stoichiometry
(d) Electrolytes
(e) Oxidation in terms of hydrogeo
(f) LeChatelier's principle
(g) One calorie
(h) Lewis concept of acid
SECTION (B) - Answer ALL questions. (12 marks) (a) Explain which of the following groups has the largest ionization energy.
- 8.i, 2.8.s, 2.8.7
(b) mrich law tV'resents the relationship between tempmature and volume? Give the mathematical expression.
(c) How does sodium hydroxide react with the following? Give équations in symbols only. carbon dioxide ; aluminium
(d) Name the main anode and cathode products during the electrolysis of sodium hydroxide solution,
(e) What is reducing agent? Give ONO exarnples of common reducing agents.
(f) Vrmatis the long form of POP? Meation its uses.