Chemistry Important One liner Questions and Answers - Competitive Exams

 Dear Aspirants, 

If you're preparing for competitive exams like SSC CGL, CHSL, CPO, LDC, FCI, MTS, LDC, and others, then you need to have a strong foundation in Chemistry. To help you achieve that, we are sharing important SSC CGL Chemistry One Liner Questions & Answers 100 Bits in this article.

This resource contains 100 one-liner questions and answers that cover a wide range of topics in Chemistry. These questions are specifically designed to help you prepare for the upcoming competitive exams and provide you with an overview of important concepts and ideas.

The questions cover various topics like the periodic table, chemical reactions, acids and bases, organic chemistry, and much more. These questions are concise and easy to understand, making them an effective way to quickly revise the topics.

By going through these one-liner questions and answers, you can gain a better understanding of the concepts and topics in Chemistry, and also boost your confidence for the upcoming exams. You can also use this resource as a quick reference guide to revise the topics before the exams.

In conclusion, the SSC CGL Chemistry One Liner Questions & Answers 100 Bits is an excellent resource for students who are preparing for competitive exams. So, go ahead and explore this content to enhance your Chemistry knowledge and increase your chances of scoring high in the exams.

Chemistry Important One liner Questions and Answers - Competitive Exams

Chemistry Important One liner Questions and Answers - Competitive Exams

1: Tube light is filled with?         Mercury Vapour & Argon

2: Other name of “FOOL’S GOLD” is?       Iron Pyrite

3: Non-stick coating in utensils is of?        TEFLON

4: Compounds responsible for temporary hardness of water?     Bicarbonates of Calcium and Magnesium

5: Compounds responsible for permanent hardness of water?   – Sulphates and Chlorides of Calcium and Magnesium

6: Gases used for ripening raw fruits?  – Ethylene & Acetylene

7: Main ore of Mercury is?   – Cinnabar

8: Egg shell is made up of?     Calcium Carbonate

9: ______ is known as Artificial Silk.      Reyon

10: Water soluble Vitamins      B & C

11: Fat Soluble Vitamins      A, D, E & K . Common preservative in food processing industry is?      Benzoic Acid

12: First organic compound synthesized in laboratory & by whom?    Urea by Friedrich Wöhler

13: What blackens silver’s shine?     Ozone Gas

14: Substance used in Cancer treatment?     Cobalt – 60

15: Cobalt is found in?      Vitamin B12

16: Iron is extracted from which ore? – Hematite


18: Aluminum is extracted from which ore?  – Bauxite

19: Copper is extracted from which ore?      Copper Pyrite . Chemical name of ‘Washing Soda’ is?     Sodium Carbonate

20: Gases used in welding are _______?    Acetylene & Oxygen

21: Gases used by sea divers for breathing are ____?    Oxygen & Helium

22: Best sources for Vitamin D are?     Sunlight & Fish liver

23: Zinc Phosphide is used as?    Rat Poison

24: Fuse wire is made up of ______     Lead and Tin

25: Purest form of Iron is?   – Wrought Iron

26: Radium is extracted from ______ .  – Pitchblende

27: Which agent is as ‘seed’ in artificial rain?    Silver Iodide

28: Oxides of metals are ______ .  – Alkaline

29: During the process of ‘rusting’ , the weight of iron ______ .  –Increases

30: ______ (metal) is liquid at room temperature.      Gallium


32: ______ is used to prepare fire proof and water proof clothes.      Calcium hydride

33: Galvanised iron is coated with?     Zinc

34: Chemical name of Chromic Acid is?    Chromium trioxide

35: Which metal is used in Photoelectric cell?    Selenium

36: Barium Hydroxide is also known as?    Baryta Water

37: ______ elements are non-metal.    Electronegative

38: __________ is known as heavy water and used in nuclear reactor as moderator.  – Deuterium Oxide (D2O)

39: Deuterium is ______ of Hydrogen.    Isotope

40: Ozone is _______ of Oxygen.    Allotrope

41: Ammonia (NH3) is synthesized through?    Haber’s Process

42: Chlorine is used to prepare _________  – PVC, Insecticides,

43: Which catalyst is used for the synthesis of Vanaspati Ghee?   –Nickle (Ni)

44: Which catalyst is used for the synthesis of Sulphuric Acid by Contact Process?  – Platinum (Pt)

45: Chemical name of Picric Acid is?  – Tri Nitro Phenol

46: ______ is known as laughing gas?     N2O

47: Chloroform in sunlight forms poisonous gas ________ .    Phosgene

48: Platinum is also called _____ .    White Gold

49: Which material is used in making of safety matches?    Red Phosphorous

50: Nail polish remover contains?    Acetone

51: Which acid is present in Orange?  – Citric Acid

52: Lead pencil contains _____ .  –Graphite . Which gas is used in filling electric bulbs ______ ?    Argon

53: Lightest metal?    Lithium

54: Acid rain is due to air pollution by?    Nitrous Oxide & Sulphur dioxide

55: Ozone is _______ .    Diamagnetic

56: Petroleum is found in ______ .    Sedimentary Rocks

57: All noble gases are?    Colourless and Odourless

58: The most abundant element in the earth’s crust is ?    Oxygen . The lustre of a metal is due to _______ .    Presence of free electrons

59: Which gas is used in fire extinguisher?     carbon dioxide


61: Which gas is used in cigarette lighters?    Butane

62: Biogas chiefly contains ______ . –  Methane

63: Chemical used as fixer in Photography is ______ .   Sodium thiosulphate

64: Aspirin is ______ .    Acetyl Salicylic Acid

65: _____ is also known as ‘Stranger Gas.’    Xenon

66: Natural rubber is a polymer derived from ______.    Isoprene

67: ‘Oil of Vitriol’ is ______ .    Sulphuric acid

68: Paper is chemically _______ .   – Cellulose

69: Impurity present in ore is ________ .  – Gangue

70: Which is known as ‘Metal of Future’ ?  – Titanium

71: Efficiency of the catalyst depends on its?  – Molecular State

72: Most of the explosions in mines occurs due to mixing of ______ .   – Methane with air

73: Vinegar is an aqueous solution of ______ .  – Acetic acid

74: Kerosene is a mixture of _____ .   – Aliphatic hydrocarbons

75: The important metal used with iron to produce stainless steel is _____ .  – Chromium

76: Which gas is responsible for the swelling of bread?   – Carbon dioxide

77: The metal constituent of chlorophyll is _____ .  – Magnesium


79: Which acid is used for etching glass?   – Hydrofluoric acid (HF)

80: Paraffin wax is _________ .   – Saturated hydrocarbon

81: Solder is an alloy of _____ .    Tin and Lead

82: Alum is used as        A purifier for water

83: Nuclear fuel in the sun is ______ .   – Helium

84: Dead organisms are transformed into petroleum and natural gas ______ .  – Absence of air

85: Organic Compounds are only soluble in _____ .   – Non-polar solvents.

86: Which acid is used in soft drinks?   – Carbonic acid (H2CO3)

87: Which acid is present in Bee Sting?   – Methanoic Acid

88: Tooth enamel is made up of ______ .   – Calcium Phosphate

89: The name ‘catalyst’ was given by _____ .   – Berzilius

90: A polymeric substance used to make parachute is _____ .   – Viscose

91: What is used to avoid melting of ice?   – Gelatine

92: Carbon occur in the nature in the purest form as?  – Diamond

93: Oxidation is defined as —–   – Loss of electrons

94: In nuclear reactor, chain reaction is controlled by using _____ .  – Cadmium rod

95: The radioactive element most commonly detected in humans is _____ .   – Potassium – 40

96: Hydrogen bomb is based on the principle of _____ .  – Nuclear fusion

97: The ultrapure metal is obtained by _____ .  – Zone refining

98: Most abundant metal in earth’s crust is ______ .   – Aluminium

99: Balloons are filled with _____ .  – Helium

100: The element common to all acids is _____ .  – Hydrogen

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Chemistry Important One liner Questions and Answers - Competitive Exams Chemistry Important One liner Questions and Answers - Competitive Exams Reviewed by SSC NOTES on October 05, 2023 Rating: 5
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