STATE the characteristics of the chemical reaction which takes place when :

A) dil.hydrochloric acid is added to sodium carbonate

B) dil.sulphuric acid is added to barium chloride solution

C) wax is Burnes in the form of candle

Open in App

Solution

1) Na2CO3 + 2 HCl --------> 2 NaCl + CO2 + H2O
Dilute hydrochloric acid is added to sodium carbonate- The chemical reaction between Sodium carbonate and dilute hydrochloric acid is characterized by the evolution of carbon dioxide gas

2) BaCl2 + H2SO4 --------> BaSO4 + 2HCl
Dilute sulphuric acid is added to barium chloride solution- The chemical reaction between dilute sulphuric acid and purple barium chloride solution is characterized by the formation of a white precipitate of barium sulphate.

3) Wax is burned in the form of candle- When wax is burned in the form of candle, water and carbondioxide are formed. The combustion reaction of candle wax, is characterised by a change in state from solid (wax) to liquid(water) and gas (Carbondioxide).

Suggest Corrections

Similar questions

Q. State your observations when:
(i) Dilute hydrochloric acid is added to lead nitrate solution and the mixture is heated.
(ii) Barium chloride solution is mixed with sodium sulphate solution.
(iii) Concentrated sulphuric acid is added to sugar crystals.
(iv) Dilute hydrochloric acid is added to copper carbonate.
(v) Dilute hydrochloric acid is added to sodium thiosulphate.

When sodium sulphate solution is added to barium chloride, a white precipitate is formed. Write the chemical name of precipitate obtained and type of chemical reaction involved in this process.

(a) Give one example of a chemical reaction.

(b) State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.

(c) Give two characteristics of the chemical reaction which occurs on adding potassium iodide solution to lead nitrate solution.

What do you observe when

(a) dilute sulphuric acid is added to granulated zinc ?

(b) a few pieces of iron are dropped in a blute solution of sodium chloride ?

(d) ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.

(e) solid lead nitrate is heated ?

(f) when dilute sulphuric acid is added to barium chloride solution ?

Q. (a) When sodium is burnt in chlorine, sodium chloride is formed, and when molten sodium chloride is electrolysed, then sodium and chlorine are formed. What type of reaction takes place:
(i) in the first case?
(ii) in the second case?
(b) When hydrogen is passed over heated copper oxide, copper and steam are formed. Write a balanced chemical equation for this reaction. State which of the chemicals is oxidised and which one is reduced?
(c) What would you observe when zinc is added to a solution of iron sulphate? Write the chemical equation of the reaction which takes place. Why does this reaction occur?

Join BYJU'S Learning Program

STATE the characteristics of the chemical reaction which takes place when : A) dil.hydrochloric acid is added to sodium carbonate B) dil.sulphuric acid is added to barium chloride solution C) wax is Burnes in the form of candle

STATE the characteristics of the chemical reaction which takes place when :

A) dil.hydrochloric acid is added to sodium carbonate

B) dil.sulphuric acid is added to barium chloride solution

C) wax is Burnes in the form of candle