Identify the type of each of the following reactions. Also write balanced chemical equation for each reaction

Question: Identify the type of each of the following reactions. Also write balanced chemical equation for each reaction.

(i) A reaction in which the reaction mixture becomes warm.

(ii) A reaction in which an insoluble substance is formed. [CBSE, OD, Set 3, 2020]

Answer: (i) Reactions in which the reaction mixture becomes warm and heat is released along with the formation of products are called exothermic reactions. Example of exothermic reactions: Burning of natural gas

CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)

CaO + H₂O → Ca(OH)₂

(ii) Reactions in which an insoluble substance is formed is known as precipitation reaction. For example: Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.

Na₂SO₄(aq) + BaCl₂(aq) → BaSO₄(s) + 2NaCl(aq)

Question: Identify the type of each of the following reactions. Also write balanced chemical equation for each reaction. (i) A reaction in which the reaction mixture becomes warm. (ii) A reaction in which an insoluble substance is formed

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गोल हूँ पर बॉल नहीं लाल हूँ पर सेब नहीं जो मुझे परेशान करें उसकी फिर खैर नहीं! - Hindi Paheli With Answer

गोल हूँ पर बॉल नहीं लाल हूँ पर सेब नहीं जो मुझे परेशान करें उसकी फिर खैर नहीं! Hindi Paheliyan With Answer, Dimagi Hindi Paheli with Answer, New Hindi Paheliyan, Tough Hindi Paheli with Answer, New Collection of Hindi Paheliyan. पहेली - गोल हूँ पर बॉल नहीं लाल हूँ पर सेब नहीं जो मुझे परेशान करें उसकी फिर खैर नहीं! जवाब - प्याज ।

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