Q. 53.5( 4 Votes )
Why Ferrous sulphate crystal losses color on heating?
The ferrous sulphate (FeSO4.7H2O) consists of 7 molecules of water. During crystal formation, this water molecule is called as water the of crystallization, the color of the crystal is due to this water molecule in crystal form. When we heat the crystal this, water et evaporated out from the crystal structure, thus changing the color of the crystal.
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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