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56. You are given a solution of AgN03 which of the following do you think cannot displace, Ag from AgN03 solution. (NTSE Punjab, Stage-I, 2016-17)
Magnesium
Zinc
Gold
Copper
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57. In the reaction Zn + FeS04 → ZnS04 + Fe (NTSE Chhattisgarh, Stage-I, 2015-16)
Zn gets oxidised
Zn is oxidising agent
Fe gets oxidised
Zn and Fe both get oxidised
58. Which of the following is a reduction reaction? (NTSE Andhra Pradesh, Stage-I, 2015-16)
Bleaching of coloured objects using moist Chlorine
Rancidity of fats
Thermite process involving the reaction of Chromium oxide (or) Iron oxide with aluminium
The poling process involving the removal of impurities from a molten metal
59. Identify the type of reaction for each of the following as Combination - (p) Decomposition - (q) Displacement - (r) Double displacement - (s) or Combustion - (t) (i) A compound breaks apart into its elements (ii) A metal and a non-metal react to form an ionic compound (iii) A compound of Hydrogen and Carbon reacts with Oxygen to produce Carbon-dioxide and water (iv) Silver ion from Ag(N03) (aq.) forms a precipitate with bromide ion from KBr aq.(NTSE Andhra Pradesh, Stage-I, 2015-16)
(i)-q (ii)-p (iii)-r (iv)-s
(i)-q (ii)-p (iii)-t (iv)-s
(i)-s (ii)-r (iii)-q (iv)-p
(i)-q (ii)-t (iii)-q (iv)-r
60. Hydrolysis of water is which type of following reactions? (NTSE Chandigarh, Stage-I, 2015-16)
Endothermic
Decomposition
Both (1) and (2)
Combination
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