Class 10 Science Chemistry Important Questions
1 give the chemical reaction that is involved in in black and white photography
2 A Shiny Brown coloured element x on heating in air air becomes black in colour name the element X and the the black coloured comp formed.
3 give an example of redox reaction and name the reducing and oxidising agent in it.
4 what is precipitation reaction? give an example.
5 give one example each of (i) photolytic (i) electrolytic react.
6 write the preparation reaction of baking soda?number
7 difference between anodising and galvanisatnnumber
8 difference between calcination and roasting
9. explain the process of electrolytic refining of Cu.
10. essential condition for rusting of iron
11. why do ionic compound have high MP?
1 give the chemical reaction that is involved in in black and white photography
2 A Shiny Brown coloured element x on heating in air air becomes black in colour name the element X and the the black coloured comp formed.
3 give an example of redox reaction and name the reducing and oxidising agent in it.
4 what is precipitation reaction? give an example.
5 give one example each of (i) photolytic (i) electrolytic react.
6 write the preparation reaction of baking soda?number
7 difference between anodising and galvanisatnnumber
8 difference between calcination and roasting
9. explain the process of electrolytic refining of Cu.
10. essential condition for rusting of iron
11. why do ionic compound have high MP?
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