| Multiple-Choice Questions: Acid base and salt |
| 1. The word acid comes from the Latin word ‘ acere ‘ which means |
| a) Sweet |
| b) Salty |
| c) Neutral |
| d) Sour |
| 2. Substances which are bitter in taste, feel soapy on touching are known as |
| a) Acids |
| b) Bases |
| c) Indicators |
| d) Neutral solution |
| 3. Special type of substances used to test whether a substance is acidic/basic are known as |
| a) Indicators |
| b) Acids |
| c) Bases |
| d) Salt |
| 4. Some naturally occurring indicators are |
| (a). Turmeric |
| (b) Litmus |
| ©. China rose |
| (d). All the above |
| 5.The most commonly used natural indicator’ Litmus’ is extracted from |
| (a).Lichens |
| (b). Turmeric |
| ©. Indicators |
| (d). China rose |
| 6. Litmus is available in the form of |
| (a). Litmus paper |
| (b) Lichens |
| © Indicator |
| (d). China rose |
| 7. Neutral solutions which do not change the colour of either red/blue litmus are known as |
| (a).Neutral solutions |
| (b) Acid solutions |
| ©. Basic solutions |
| (d). Neither acidic nor basic |
| 8. Acetic acid is found in |
| (a).Curd |
| (b). Spinach |
| © Citrus fruits |
| (d). Vinegar |
| 9. Formic acid is found in |
| a). Curd |
| (b). Spinach |
| ©. Ant’s sting |
| (d) Ascorbic acid |
| 10. Citric acid is found in |
| (a). Curd |
| (b). Citrus fruits |
| ©. Ascorbic acid |
| (d). Lime water |
| 11. Lactic acid is found in |
| (a). Curd |
| (b).Citrus fruits |
| ©.Gooseberry |
| (d)Lime |
| 12. Oxalic acid is found in |
| a) Spinach |
| b) Curd |
| c) Oranges |
| d) Unripe mangoes |
| 13. Ascorbic acid is found in |
| (a). Amla & Citrus fruits |
| (b) Curd |
| ©. Oranges & lemon |
| (d).Unripe mangoes |
| 14. Tartaric acid is found in |
| (a). Tamarind |
| (b) Grapes |
| © unripe mangoes |
| (d)All of the above |
| 15. Calcium hydroxide is found in |
| Calcium carbonate |
| Calcium chloride |
| Calcium |
| Lime water |
| 16. Ammonium hydroxide is found |
| (a).Window cleaner |
| (b).Detergents |
| (c) Soap |
| (d). Milk of magnesia |
| 17. Sodium hydroxide is found in |
| a) Soap |
| b) Window cleaner |
| c) Calcium hydroxide |
| d) Sodium |
| 18. Potassium hydroxide is found in |
| (a). Soap |
| (b). Window cleaner |
| © Potassium |
| (d)Potassium chlorate |
| 19. Magnesium hydroxide is found in |
| (a). Milk of magnesia |
| (b).Magnesium chloride |
| (c) Magnesium ribbon |
| (d) Magnesium hydroxide |
| 20.Which of the following salts is basic in nature? |
| (a) NH4NO3 |
| (b) Na2CO3 |
| (c) Na2SO4 |
| (d) NaCl |
| Answer |
| 1. D 2 b 3. A 4. D 5. A 6. A 7. A 8. d |
| 9. C 10. b 11. A 12. A 13. A 14. D 15. d 16. A |
| 17. A 18. A 19.a 20 B |
Wednesday, July 18, 2012
CBSE ADDA: Chemistry:MCQ:Acid base and salt: For Olympiads
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2 comments:
Wonderful information shared about chemistry questions.Chemistry contributes high in scoring the numbers in science subject.
icse 2011 board papers
Metals and Non-metals is an important chapter in Class 10 Science that helps students understand the basic building blocks of materials used in daily life. The chapter clearly explains the physical and chemical properties of Metals and Non-metals, such as conductivity, malleability, ductility, and reactivity. It also highlights the uses of Metals and Non-metals in industries, medicine, construction, and technology
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