lipmse

in #mio6 years ago

s with the correct word(s) ,terms. (7 marks)
(a) Sodium hydroxide is commercially produced from saturated solution of ………. by using electrolysis.
(b) The properties of steel depend upon the ……….. .
(c) Ammonia gas has a characteristic ………. smell.
(d) Hydrogen sulphide has weak ………. properties.
(e) Halogens have essential electronic structure of ………. .
(f) In the reaction with ammonia, boron trifluoride behave as an ………. .
(g) The IUPAC name of di-methyl methylene is ………. .

  1. Select the correct word(s) given in the bracket. (7 marks)
    (a) Proteiur in H2SO3 is ( +6,+4,-2) .
    (g) Light is a source of (force, pressure, energy).
  2. Match each of the items in List A with the appropriate items in the list B. (7 marks)
    List A List B
    (a) Neutralization (i) it dissolves in noble metal gold
    (b) Alum (ii) CaO Cl2.2 H2O
    (c) Ammonium iron (II) sulphate (iii) show allotropy
    (d) Aqua-regia (iv) reaction between any acid and a base
    (e) Sulphur (v) dissociation constant of the indicator
    (f) Bleaching powder (vi) K2SO4. Al2(SO4)3.24 H2O
    (g) Kin (vii) (NH4)2 SO4.FeSO4.6H2O
  3. Define the following terms. (8 marks)
    (a) Electron affinity
    (b) Gay-lussac’s law of oxidation number
    (c) Molarity
    (d) Electrolysis
    (e) Reduction in terms of oxidation number
    (f) A catalyst
    (g) Chemical energetics
    (h) An acid according to Lewis theory
    SECTION (B)
  4. Answer ALL questions. (12 marks)
    (a) What of chemical bond is formed betw
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