Question

and baland
abund
Aluminium metal and oxygen gas are obtained when electricity is
passed through molten alumina (Aluminium oxide).
ni Calcium oxide and carbon dioxide are produced when calcium
carbonate is heated.
is heated.
Ebbon
drogen
ygen. 4. Carbon dioxide and sulphur dioxide are obtained when carbon
disulphide is burnt in the air.
5. Phosphorous pentaoxide is formed when phosphorous is burnt in
the air.
me 6. Ferrous sulphate decomposes into ferric oxide, sulphur dioxide and
sulphur trioxide when it is heated excessively.
Iphic 7. Cupric hydroxide decomposes into cupric oxide and water when it
is heated.
wgen 8. Magnesium oxide and carbon dioxide are formed when magnesium
Shide
carbonate is heated.
9. Zinc oxide and carbon dioxide are formed when zinc carbonate is
heated.
Lenin 3. Potassium chloride and oxygen are formed when potassium chlorate​

Answer 1

Answer:

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Explanation:

i) Ans -  Phosphorous + oxygen = Phosphorous Pentoxide

                                                                                                                                                     After balancing equation,  

                                                           4P +  5O2  → 2P2O5

ii) Ans - Aluminium + Ferric oxide  →  Aluminium Oxide + Iron

             After balancing equation,  

                                                         2Al + Fe2O3 → Al2O3 + Fe2

iii) Ans - Carbon disulfide + Oxygen → Carbon dioxide + Sulphur dioxide  

              After balancing equation,  

                                                         CS2 + 3O2 → CO2 + 2SO2

iv) Ans -  Barium Chloride + Zinc Sulphate → Zinc Chloride + Barium Sulphate

             

                After balancing this equation,

BaCl2 + ZnSO4 → ZnCl2 + BaSO4