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question_answer1) When quick lime is added to water we get slaked lime and the mixture becomes hot. This is because the reaction is:
question_answer2) When ferrous sulphate is heated strongly a reddish brown residue of ferric oxide is obtained. This is an example of
question_answer3) Which among the following chemical reaction represent a combination reaction?
question_answer4) When current is passed through acidified water it breaks down into hydrogen and oxygen, this is an example of:
question_answer5) Rancidity of food items can be prevented by adding:
question_answer6) Which among the following reactions is in accordance to the law of conservation of mass?
question_answer7) Which of the following chemical reactions represent the given statement? Silver chloride decomposes in presence of sunlight to give silver and chlorine.
question_answer8) What happens when lead reacts with copper chloride solution?
question_answer9) In the following reaction identify the reducing agent: \[3Mn{{O}_{2}}+4Al\to 3Mn+A{{l}_{2}}{{O}_{3}}\]
question_answer10) A copper vessel is covered with a green coating in rainy season because of:
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