Question

please solve it I will mark it as brain list​

Answer 1

Answer:

1... since zinc is more reactive than copper it displaced copper from copper sulphate solution thus giving rise to change in colour and holes on the zinc plate

zinc + copper sulphate gives rise to zinc sulphate + copper

2... X is sodium sulphate and Y is barium sulphate

this is a double displacement reaction.

3... a chemical reaction takes place when potassium iodide reacts with lead nitrate giving rise to a precipitate

this is a double displacement reaction

4...i think the white salt is sodium carbonate

5... one example for thermal decomposition reaction is burning of ferrous sulphate or lead nitrate solution

example for photochemical decomposition reactions are silver chloride or silver bromide should be placed in sunlight and this process is used in black and white photography

6...displacement reaction is a reaction in which a less reactive metal is displaced by a highly reactive metal from its compound

a double displacement reaction is a reaction in which a reaction takes place with the exchange of ions

8...MnO2 is a reducing agent

Mn is less reactive than Al because aluminium displaces manganese from its salt solution and aluminium is placed above manganese in the reactivity series of metals

9... oxidation reaction is a reaction in which a reaction takes place by addition of oxygen or removal of hydrogen

i think oxidation is an endothermic process

10... it is just a reduction reaction so it cannot be a redox reaction

11... redox reaction is a reaction in which both oxidation and reduction take place

magnesium is oxidised when it burns and forms a white ash because it burns to form magnesium oxide

12...respiration

15...ferrous sulphate crystals become colourless

i think a decomposition reaction takes place

Explanation:

sorry that i am not able to answer all the questions of yours

but please mark it as the brainliest as it took me so much time to answer all these