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Acids Bases and Salts Chapter5 MULTIPLE CHOICE QUESTIONS
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MULTIPLE CHOICE QUESTIONS • 1. The correct way of making a solution of acid in water is to • (a) add water to acid. • (b) add acid to water. • (c) mix acid and water simultaneously. • (d) add water to acid in a shallow container. • • 2. Products of a neutralisation reaction are always • (a) an acid and a base. • (b) an acid and a salt. • (c) a salt and water. • (d) a salt and a base. • • 3. Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed • (a) Yellow in both acid and base. • (b) Yellow in acid and red in base. • (c) Pink in acid and yellow in base. • (d) Red in acid and blue in base. • • 4. Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are • (a) red and blue. • (b) blue and red. • (c) pink and colourless. • (d) colourless and pink • • 5. When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil? • (a) Organic matter • (b) Quick lime • (c) Slaked lime • (d) Calamine solution • • 6. ‘Litmus’, a natural dye is an extract of which of the following? • (a) China rose (Gudhal) • (b) Beetroot • (c) Lichen • (d) Blue berries (Jamun) • • 7. Neutralization reaction is a • (a) physical and reversible change. • (b) physical change that cannot be reversed. • (c) chemical and reversible change. • (d) chemical change that cannot be reversed. • • 8. A solution changes the colour of turmeric indicator from yellow to red. The solution is • (a) basic • (b) acidic • (c) neutral • (d) either neutral or acidic • • 9. Which of the following set of substances contain acids? • (a) Grapes, lime water • (b) Vinegar, soap • (c) Curd, milk of magnesia • (d) Curd, vinegar • • 10. On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution? • (a) Basic • (b) Either acidic or basic • (c) Either acidic or neutral • (d) Either basic or neutral • • 11.Which of the following is an acid-base indicator? • (a) Vinegar • (b) Lime water • (c) Turmeric • (d) Baking soda • • For Short Notes, Revision Notes And NCERT Solution. • Visit Us at- • https://www.kwatratuitioncenter.com/
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