Q. 424.8( 4 Votes )
What happens when a zinc strip is dipped into a copper sulphate solution ?
(a) Write the equation for the reaction that takes place.
(b) Name the type of reaction involved.
(a) CuSO4(aq.) +Zn(s) --→ ZnSO4(aq.) +Cu(s)
(b) It is a displacement reaction.
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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