Q. 34 A4.1( 7 Votes )
Explain the following in terms of gain or loss of oxygen with one example each:
(i) oxidation (ii) reduction
(i) In the above reaction hydrogen gains oxygen and is oxidized forming dihydrogen oxide.
(ii) In the above reaction Copper loses Oxygen And is reduced forming copper metal.
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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