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One destination to find everything from exams to study materials.
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One destination to find everything from exams to study materials.
Exams |
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QnA |
Study Material
One destination to find everything from exams to study materials.
Exams |
Courses |
QnA |
Study Material
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(a) Blue vitriol is blue in color as it contains 5 molecules of water of crystallization (CuSO4H2O). When it is heated, it loses water of crystallization and becomes anhydrous CuSO4 which is grey-white in color.
(b) Washing soda (Na 2CO3.10H2O) is a white crystalline substance and on exposure to air it gets changed the o white powder.
(c) Pure water is neutral to litmus which means that no change in the colour of blue or red litmus solution is observed when 1 treated with water.