MISCELLANEOUS AND USEFUL CHEMICAL COMPOUNDS (Part-III)

1. Diamond is an allotrope of: [S.S.C. JE Mechanical Exam 27.10.2020 (Shift-1)]

1. (a) Boron
2. (b) Silicon
3. (c) Arsenic
4. (d) Carbon

2. Sour taste of lemon is due to the presence of which of the following? [S.S.C. Online Graduate Level (T-I) 8.09.2016 (Shift-II)]

1. (a) Citric acid
2. (b) Acetic acid
3. (c) Oxalic acid
4. (d) Formic acid

3. In which of the following options is the substance INCORRECTLY paired with the acid present in that substance? [S.S.C. Online C.H.S.L. (T-I) 09.08.2021 (Shift-II)]

1. (a) Lemon - Lactic Acid
2. (b) Orange - Citric Acid
3. (c) Vinegar - Acetic Acid
4. (d) Tomato - Oxalic Acid

4. In which of the following is citric acid present? [S.S.C. Online Graduate Level (T-I) 9.03.2020 (Shift-I)]

1. (a) Curd
2. (b) Lemon
3. (c) Tamarind
4. (d) Black Gram

5. Which of the following acid is present in sour milk? [S.S.C. Online MTS (T-I) 21.09.2017 (Shift-II)]

1. (a) Formic acid
2. (b) Lactic acid
3. (c) Citric Acid
4. (d) Tartaric Acid

6. Which of the following acids is NOT present in grapes? [S.S.C. Online Graduate Level (T-I) 5.03.2020 (Shift-III)]

1. (a) Tartaric acid
2. (b) Acetic acid
3. (c) Citric acid
4. (d) Malic acid

7. Which of the following acids found in Apple? [S.S.C. Graduate Level (T-I) 6.06.2019 (Shift-III)]

1. (a) Malic Acid
2. (b) Sulphuric Acid
3. (c) Formic Acid
4. (d) Nitric Acid

8. Which of the following acid-source pairs is correctly matched? [S.S.C. Online MTS (T-I) 14.08.2019 (Shift-III)]

1. (a) Citric Acid - Lemon
2. (b) Lactic Acid - Vinegar
3. (c) Formic Acid - Tamarind
4. (d) Acetic Acid - Ant’s sting

9. Which acid is present in tomatoes? [S.S.C. Online Constable GD 22.02.2019 (Shift-I)]

1. (a) Tartaric acid
2. (b) Sulfenic acid
3. (c) Malic Acid
4. (d) Oxalic acid

10. Name the acid present in tamarind. [S.S.C. Online Constable GD 18.02.2019 (Shift-III)]

1. (a) Lactic acid
2. (b) Tartaric acid
3. (c) Citric acid
4. (d) Amino acids

11. What is the product formed when sodium bicarbonate is heated [S.S.C. Online Graduate Level (T-I) 29.08.2016 (Shift-I)]

1. (a) Sodium Carbonate
2. (b) Sodium Hydroxide
3. (c) Sodium Peroxide
4. (d) Sodium Monoxide

12. Which of the following acids is called the king of acids? [S.S.C. Online MTS (T-I) 15.10.2017 (Shift-II)]

1. (a) Carbonic acid
2. (b) Phosphoric acid
3. (c) Nitric acid
4. (d) Sulphuric acid

13. What is the formula of potassium ion in an ideal gas state? [S.S.C. Online CHSL (T-I) 21.01.2017 (Shift-II)]

1. (a) K⁺
2. (b) K²⁺
3. (c) K²⁻
4. (d) K⁻

14. Which of the following is NOT a noble gas? [S.S.C. Online MTS (T-I) 22.10.2021 (Shift-I)]

1. (a) Oxygen
2. (b) Argon
3. (c) Krypton
4. (d) Neon

15. Which among the following is an example of solid sol? [S.S.C. Online Graduate Level (T-I) 8.08.2017 (Shift-I)]

1. (a) Milk of Magnesia
2. (b) Foam
3. (c) Coloured gemstones
4. (d) Rubber

16. The state in which molecular attractions are very strong is: [S.S.C. Online MTS (T-I) 6.10.2017 (Shift-I)]

1. (a) Solid
2. (b) Liquid
3. (c) Gas
4. (d) None of these

17. Which of the following is used for the ripening of fruits? [S.S.C. Online C.P.O.S.I. (T-I) 3.07.2017 (Shift-II)]

1. (a) Methylene
2. (b) Ethylene
3. (c) Acetone
4. (d) Methane

18. Whitewashed walls appear to be shiny after three to four days due to the formation of: [S.S.C. Online MTS (T-I) 20.10.2021 (Shift-III)]

1. (a) Calcium nitrate
2. (b) Calcium sulphate
3. (c) Calcium oxide
4. (d) Calcium carbonate

19. Name the gas used in the preparation of bleaching powder. [S.S.C. Online Graduate Level (T-I) 1.09.2016 (Shift-I)]

1. (a) Oxygen
2. (b) Hydrogen
3. (c) Nitrogen
4. (d) Chlorine

20. What is the common name of Ca(OCl)₂? [S.S.C. Online C.P.O.S.I. (T-I) 7.07.2017 (Shift-I)]

1. (a) Washing soda
2. (b) Bleaching powder
3. (c) Baking powder
4. (d) Baking soda

21. Bleaching powder is: [S.S.C. Online MTS (T-I) 5.10.2017 (Shift-II)]

1. (a) Ca₂OCl₂
2. (b) Ca(OCl)₂
3. (c) CaClO₂
4. (d) CaCl₂

22. What is the common name of Ca(OCl)₂? [S.S.C. Online Graduate Level (T-I) 11.08.2017 (Shift-III)]

1. (a) Baking powder
2. (b) Baking soda
3. (c) Bleaching powder
4. (d) Washing soda

23. What is the common name of calcium hypochlorite? [S.S.C. Online C.P.O.S.I. (T-I) 5.07.2017 (Shift-II)]

1. (a) Water
2. (b) Bleaching powder
3. (c) Baking soda
4. (d) Baking powder

24. What is the generic name of calcium sulphate hemihydrate? [S.S.C. Online C.H.S.L. (T-I) 04.08.2021 (Shift-II)]

1. (a) Plaster of Paris
2. (b) Baking soda
3. (c) Vinegar
4. (d) Detergent powder

25. Plaster of Paris is obtained by heating: [S.S.C. Online MTS (T-I) 5.10.2017 (Shift-I)]

1. (a) Gypsum
2. (b) Calcium chloride
3. (c) Sodium sulphate
4. (d) Calcium sulphate

26. Which of the following is the chemical name of baking soda? [S.S.C. Online Graduate Level (T-I) 11.06.2019 (Shift-I)]

1. (a) Sulphate
2. (b) Sodium Hydrogen Carbonate
3. (c) Sodium Carbonate
4. (d) Calcium Hydroxide

27. The by-product of the soap industry is: [C.P.O. S.I. 5.06.2016 (Shift-II)]

1. (a) Caustic soda
2. (b) Glycerol
3. (c) Naphthalene
4. (d) Caustic potash

28. Soaps are sodium salts of which of the following? [S.S.C. Online MTS (T-I) 18.09.2017 (Shift-III)]

1. (a) Mineral acid
2. (b) Fatty acids
3. (c) Lactic acid
4. (d) Organic acids

29. Which of the following is not true about X-rays? [S.S.C. Graduate Level(T-I) 29.08.2016 (Shift-I)]

1. (a) They have low penetrating power
2. (b) Travel with the speed of light
3. (c) can be reflected or refra cted
4. (d) can affect photographic plates

30. Device used for the detection and measurement of all types of radiation (Alpha, Beta, and Gamma) [S.S.C. Online CHSL (T-I) 9.01.2017 (Shift-III)]

1. (a) Geiger Counter
2. (b) Polarimeter
3. (c) Calorimeter
4. (d) Radiometer

31. Which of the following produces the most solid waste? [S.S.C. Online Graduate Level (T-I) 2.09.2016 (Shift-III)]

1. (a) Agriculture
2. (b) Nuclear Power Plants
3. (c) Manufacturing
4. (d) Packaging Industry

32. Which among the following is false about alpha particles? [S.S.C. Online CHSL (T-I) 10.01.2017 (Shift-II)]

1. (a) They have high ionizing power
2. (b) They have high penetrating power
3. (c) They have high kinetic energy
4. (d) They are positively charged Helium nuclei

33. For what is the Radiocarbon dating technique used? [S.S.C. Online CHSL (T-I) 15.01.2017 (Shift-I)]

1. (a) To estimate soil contamination
2. (b) To estimate the amount of water in fossils
3. (c) To estimate the age of fossils
4. (d) To estimate the quality of soil

34. Carbon dating means: [S.S.C. Online CPO SI (T-I) 09.11.2022 (Shift-I)]

1. (a) a method to determine the density of fissile material
2. (b) a method of calculating the remains of sulfur and nitrogen in hard rock
3. (c) a method of calculating the age of very old objects by measuring the amounts of different forms of carbon in them
4. (d) a method of determination of weight of a very old rock

35. The chemical that is used to ripen mangoes is— [S.S.C. Online Graduate Level (T-I) 4.09.2016 (Shift-III)]

1. (a) Calcium Sulphide
2. (b) Calcium Carbide
3. (c) Calcium Carbonate
4. (d) Calcium Chloride

36. Which chemical is used for the artificial ripening of mangoes? [S.S.C. Online CHSL (T-I) 19.01.2017 (Shift-II)]

1. (a) Sulfur dioxide
2. (b) Nitrous oxide
3. (c) Calcium carbide
4. (d) Phosphorous

37. Which gas is used by chemical leaveners, such as baking powder and baking soda, to lighten and aerate baked goods? [S.S.C. Online CPO SI (T-I) 09.11.2022 (Shift-I)]

1. (a) Nitrogen
2. (b) Carbon dioxide
3. (c) Helium
4. (d) Hydrogen

38. What is the dominant chemical present in detergent powder? [S.S.C. Online Graduate Level (T-I) 12.06.2019 (Shift-I)]

1. (a) Hydrochloric Acid
2. (b) Sodium Carbonate
3. (c) Calcium Carbonate
4. (d) Sodium Alkyl Sulphate

39. What is the chemical name of quicklime? [S.S.C. Online C.P.O.S.I. (T-I) 7.07.2017 (Shift-I)]

1. (a) Calcium carbonate
2. (b) Calcium oxide
3. (c) Sodium hydroxide
4. (d) Calcium sulphate

40. Chemical formula of quick lime is: [S.S.C. Online CGL (T-I) 01.12.2022 (Shift-I)]

1. (a) CaO
2. (b) CO₂
3. (c) CaCO₃
4. (d) Ca(OH)₂

41. What is obtained on adding quick lime to H₂O? [S.S.C. Online MTS (T-I) 3.10.2017 (Shift-II)]

1. (a) Lime water
2. (b) Limestone
3. (c) Slaked lime
4. (d) None of these

42. Slaked lime is chemically known as: [S.S.C. JE Mechanical Exam 27.10.2020 (Shift-I)]

1. (a) Calcium hydroxide
2. (b) Sodium hydroxide
3. (c) Sodium nitrate
4. (d) Calcium carbonate

43. What is the chemical name of chalk? [S.S.C. Online Constable GD 22.02.2019 (Shift-I)]

1. (a) Sodium carbonate
2. (b) Calcium carbonate
3. (c) Hydrogen carbonate
4. (d) Magnesium carbonate

44. Limestone, chalk, and marble are different forms of: [S.S.C. Online CGL (T-I) 02.12.2022 (Shift-II)]

1. (a) Calcium phosphate
2. (b) Calcium hydroxide
3. (c) Calcium oxide
4. (d) Calcium carbonate

45. What is the chemical name of the deadly poison 'cyanide'? [S.S.C. Online Graduate Level (T-I) 12.06.2019 (Shift-II)]

1. (a) Hydrochloric Acid
2. (b) Sulfuric Acid
3. (c) Nitric Acid
4. (d) Prussic Acid

46. Limestone is a sedimentary rock, mainly composed of: [S.S.C. Online Graduate Level (T-I) 19.06.2019 (Shift-III)]

1. (a) Nitrogen oxide
2. (b) Sodium chloride
3. (c) Calcium carbonate
4. (d) Sodium bicarbonate

47. Silica gel is a— [S.S.C. Online Graduate Level (T-I) 30.08.2016 (Shift-II)]

1. (a) moisturizer
2. (b) flavouring agent
3. (c) drying agent
4. (d) delicious food

48. Which of the following functional group of carbon does not contain oxygen? [S.S.C. Online MTS (T-I) 20.08.2019 (Shift-I)]

1. (a) Alcohol
2. (b) Halogen
3. (c) Aldehyde
4. (d) Ketones

49. How many Carbon and Hydrogen atoms are there in Propane, respectively? [S.S.C. Online Graduate Level (T-I) 7.03.2020 (Shift-III) Ans. (a)]

1. (a) 3, 8
2. (b) 4, 7
3. (c) 2, 6
4. (d) 2, 4

50. Alkenes were earlier known as: [S.S.C. Online CHSL (T-I) 24.01.2017 (Shift-III)]

1. (a) Paraffins
2. (b) Titoffins
3. (c) Olefins
4. (d) Meloffins