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Name the substance which on treatment with chlorine yields bleaching powder?

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What is the common name of the compound CaOCl2?

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Under what soil condition do you think a farmer would treat the soil of his fields with quick lime

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Do basic solutions also have H+ (aq) ions? If yes, then why are these basic?

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What effect does the concentration of H+ (aq) ions have on the nature of the solution?

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You have two solutions, A and B. The pH of solution A is 6 and pH of solution B is 8.

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How is the concentration of hydroxide ions (OH−) affected when excess base is dissolved

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How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?

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While diluting an acid, why is it recommended that the acid should be added to water

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Why does dry HCl gas not change the colour of the dry litmus paper?

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Why does an aqueous solution of an acid conduct electricity?

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Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds

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Metal compound A reacts with dilute hydrochloric acid to produce effervescence.

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Which gas is usually liberated when an acid reacts with a metal?

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Why should curd and sour substances not be kept in brass and copper vessels?

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You have been provided with three test tubes. One of them contains distilled water

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Explain the following terms with one example each. (a) Corrosion (b) Rancidity

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Oil and fat containing food items are flushed with nitrogen. Why?

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Why do we apply paint on iron articles?

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A shiny brown-coloured element ‘X’ on heating in air becomes black in colour.

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