Q. 483.8( 9 Votes )
When metal X is treated with a dilute acid Y, then a gas Z is evolved which bums readily by making a little explosion.
(a) Name any two metals which can behave like metal X.
(b) Name any two acids which can behave like acid Y.
(c) Name the gas Z.
(d) Is the gas Z lighter than or heavier than air?
(e) Is the reaction between metal X and dilute acid Y exothermic or endothermic?
(f) By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate physical states of all the reactants and products.
(b) HCL and H2SO4 behaves like Y.
(c) The gas is Hydrogen.
(d) Gas Z is lighter than air.
(e) The reaction is Exothermic.
(f) Take X as Zinc(Zn) and acid Y as Dil. Hydrochloric acid(HCl).
Zn (s) + 2HCl (aq.) ZnCl2 (aq.) + H2 (g)
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Which among the following statement(s) is(are) true? Exposure of silver chloride to sunlight for a long duration turns grey due to:
(i) The formation of silver by decomposition of silver chloride
(ii) Sublimation of silver chloride
(iii) Decomposition of chlorine gas from silver chloride
(iv) Oxidation of silver chlorideEvergreen Science
Which of the following are exothermic processes?
(i) Reaction of water with quicklime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)Evergreen Science
(b)Lakhmir Singh & Manjit Kaur - Chemistry