Q. 164.9( 7 Votes )
What type of chemical reactions take place when:
(a) a magnesium wire is burnt in air?
(b) lime-stone is heated?
(c) silver bromide is exposed to sunlight
(d) electricity is passed through water?
(e)ammonia and hydrogen chloride are mixed?
(b) Decomposition Reaction
(c) Decomposition Reaction
(d) Decomposition 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
Write true or false for the following statements:
The reaction Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) is type of double displacement reactionEvergreen Science