Chapter 1 Chemical Reactions and Equations – HI MCQ!

What is observed when a solution of potassium iodide is added to silver nitrate solution?

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To facilitate the electrolysis of water we add a few drops of acids like sulfuric acid or salts like NaCl because?

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Which of the following gases can be used for storage?

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Ethane (C2H6 ) on complete combustion gave CO2 and water. It shows that the results are in accordance with the law of conservation of mass. Then, the coefficient of oxygen is equal to?

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Zinc reacts with silver nitrate to form which compounds?

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In an electrolytic cell where electrolysis is carried, anode has?

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Which of the following are exothermic processes? (i) Reaction of water with quick lime (ii) Dilution of an acid (iii) Evaporation of water (iv) Sublimation of camphor (crystals)?

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In which of the following chemical equations the abbreviations represent the correct states of the reactants and Products involved at reaction temperature?

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Silver article turns black when kept in the open for a few days due to formation of?

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What type of chemical reactions take place when electricity is passed through water?

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