Here is the compilation of all previous year question of General Awareness-Chemistry – with answers.
SSC CGL 2019 Questions
Ques 1] Which of the following metals is the most ductile metal?
- Tin
- Gold
- Aluminium
- Copper
Correct Answer : Gold
Ques 2 ) What is deposited on iron in the process of galvanization?
- Tin
- Zinc
- Copper
- Aluminium
Correct Answer : Zinc
Ques 3) Which of the following metals is the most reactive metal?
- Zinc
- Copper
- Iron
- Calcium
Correct Answer : Calcium
Ques 4 ) Rust needs three components to occur, i.e., __.
- Steel, iron and oxygen
- Helium, hydrogen and nitrogen
- Iron, nitrogen and moisture
- Iron, oxygen and moisture
Correct Answer : Iron, oxygen and moisture
SSC CGL 2017Questions
Question:1) Which acid is released when an Ant bites?[08-AUG-2017 Shift-1]
Options:
1) Hydrochloric Acid
2) Formic Acid
3) Acetic Acid
4) Phosphoric Acid
Correct Answer: Formic Acid
Question:2) Which among the following is an example of solid sol?[08-AUG-2017 Shift-1]
Options:
1) Milk of magnesia
2) Foam
3) Coloured gemstones
4) Rubber
Correct Answer: Coloured gemstones
Question:3)At what temperature (in Fahrenheit) pure water freezes?[08-AUG-2017 Shift-2]
Options:
1) 32
2) 0
3) 48
4) 37
Correct Answer: 32
Question:4)Process of gaining electrons is known as _____.[08-AUG-2017 Shift-2]
Options:
1) oxidation
2) reduction
3) radiation
4) both oxidation and reduction
Correct Answer: reduction
Question:5) What are isobars?[08-AUG-2017 Shift-3]
Options:
1) Elements with same atomic number but different mass number
2) Elements with different atomic number but same mass number
3) Elements with different atomic number and different mass number
4) Elements with same atomic number and same mass number
Correct Answer: Elements with different atomic number but same mass number
Question:6) Which of the following pairs is INCORRECT?[08-AUG-2017 Shift-3]
I. Haematite : Iron
II. Pitchblende : Copper
III. Monazite : Thorium
Options:
1) Only I
2) Only II
3) Only I and II
4) Only I and III
Correct Answer: Only II
Question:7) Which of the following bonds are weakest in nature?[09-AUG-2017 Shift-1]
Options:
1) Single bond
2) Double bond
3) Triple bond
4) Hydrogen bond
Correct Answer: Hydrogen bond
Question:8) In the following reaction, fill in the blank.[09-AUG-2017 Shift-1]
Acid + Base → _______ + Water
Options:
1) Carbon dioxide
2) Metal Oxide
3) Hydrogen Gas
4) Salt
Correct Answer: Salt
Question:9)A radio-active substance has a half life of six months. Three-fourth of the substance will decay in ______.[09-AUG-2017 Shift-3]
Options:
1) Six months
2) Ten months
3) Twelve Months
4) Twenty four months
Correct Answer: Twelve Months
Question:10)pH of the human blood is ______. [09-AUG-2017 Shift-3]
Options:
1) Slightly Acidic
2) Highly Acidic
3) Slightly Basic
4) Highly Basic
Correct Answer: Slightly Basic
Question:11)Process of loosing electrons is known as _____.[10-AUG-2017 Shift-2]
Options:
1) oxidation
2) reduction
3) radiation
4) both oxidation and reduction
Correct Answer: oxidation
Question:12)Anions are formed by _____.[10-AUG-2017 Shift-2]
Options:
1) losing of electrons
2) gaining of electrons
3) gaining of neutrons
4) losing of neutrons
Correct Answer: gaining of electrons
Question:13)Which of the following is a characteristic of an exothermic reaction?[10-AUG-2017 Shift-2]
Options:
1) Release of heat
2) Absorption of heat
3) Doesn’t involve any change in temperature
4) None of the option is correct
Correct Answer: Release of heat
Question:14) What is the chemical formula for Sodium Chloride (Salt)?[10-AUG-2017 Shift-2]
Options:
1) NaCl2
2) NaCl
3) Na2Cl
4) Na2C
Correct Answer: NaCl
Question:15)What is an endothermic reaction?[10-AUG-2017 Shift-3]
Options:
1) Reaction in which heat is released.
2) Reaction in which heat is absorbed.
3) Reaction in which neither heat is released nor absorbed.
4) None of these
Correct Answer: Reaction in which heat is absorbed.
Question:16)Which of the following is an ore of Aluminium?[10-AUG-2017 Shift-3]
Options:
1) Galena
2) Cryollite
3) Cinnabar
4) Epsom Salt
Correct Answer: Cryollite
Question:17) What is nature of pH of Milk?[11-AUG-2017 Shift-1]
Options:
1) Slightly Acidic
2) Slightly Basic
3) Highly Acidic
4) Highly Basic
Correct Answer: Slightly Acidic
Question:18)Which among the following is not an example of emulsion?[11-AUG-2017 Shift-1]
Options:
1) Chocolate-Milk
2) Butter
3) Whipped Cream
4) Curd
Correct Answer: Curd
Question:19)In which industry Potassium Nitrate is used commercially?[11-AUG-2017 Shift-2]
Options:
1) Glass Manufacturing
2) Electroplating
3) Fire Cracker Manufacturing
4) Leather Industry
Correct Answer: Fire Cracker Manufacturing
Question:20)Which of the following is not an example of Allotrope?[11-AUG-2017 Shift-2]
Options:
1) Diamond
2) Graphite
3) Ozone
4) Steel
Correct Answer: Steel
Question:21)What is the common name of CaOCl2?
Options:
1) Baking Powder
2) Baking Soda
3) Bleaching Powder
4) Washing Soda
Correct Answer: Bleaching Powder
Question:22)What is the common characteristic of the elements of the same group in the periodic table?[11-AUG-2017 Shift-3]
Options:
1) Electrons in outer most shell
2) Total number of electrons
3) Total number of protons
4) Atomic weight
Correct Answer: Electrons in outer most shell
Question:23)Which disease is caused by Nickel?[11-AUG-2017 Shift-3]
Options:
1) Itai Itai
2) Dermatitis
3) Learning disability
4) Asthma
Correct Answer: Dermatitis
Question:24)What is an exothermic reaction?[12-AUG-2017 Shift-1]
Options:
1) Reaction in which heat is released.
2) Reaction in which heat is absorbed.
3) Reaction in which neither heat is released nor absorbed.
4) None of these
Correct Answer: Reaction in which heat is released.
Question:25)What are the main components of Brass Alloy?[12-AUG-2017 Shift-1]
Options:
1) Copper and Zinc
2) Copper and Strontium
3) Copper, Zinc and Nickel
4) Copper and Nickel
Correct Answer: Copper and Zinc
Question:26)What is the common name of Sodium Bicarborate?[12-AUG-2017 Shift-2]
Options:
1) Baking Soda
2) Washing Powder
3) Plaster of Paris
4) Fly Ash
Correct Answer: Baking Soda
Question:27)Which of the following is an ore of iron?[12-AUG-2017 Shift-2]
Options:
1) Dolomite
2) Epsom Salt
3) Siderite
4) Galena
Correct Answer: Siderite
Question:28) Which among the following is used to treat Indigestion?[12-AUG-2017 Shift-3]
Options:
1) Antacid
2) Antiseptic
3) Analgesic
4) Antibiotic
Correct Answer: Antacid
Question:29)Which of the following cannot be beaten into Sheets?[12-AUG-2017 Shift-3]
Options:
1) Gold
2) Silver
3) Potassium
4) Aluminum
Correct Answer: Potassium
Question:30)What is the process of conversion of solid state directly to gaseous state called?[16-AUG-2017 Shift-1]
Options:
1) Evaporation
2) Condensation
3) Sublimation
4) Distillation
Correct Answer: Sublimation
Question:31)What are the main components of Bronze Alloy?[16-AUG-2017 Shift-1]
Options:
1) Copper and Zinc
2) Copper and Tin
3) Zinc and Nickel
4) Aluminium and Nickel
Correct Answer: Copper and Tin
Question:32)Fog, clouds, mist are examples of _______. [16-AUG-2017 Shift-2]
Options:
1) Aerosol
2) Solid sol
3) Foam
4) Gel
Correct Answer: Aerosol
Question:33)Which of the following is a chemical formula of quicklime? [16-AUG-2017 Shift-2]
Options:
1) Ca2O
2) Ca2CO3
3) CaO2
4) CaO
Correct Answer: CaO
Question:34)Supercooling is cooling of liquid _____.[16-AUG-2017 Shift-3]
Options:
1) below melting point
2) below freezing point
3) at melting point
4) above melting point
Correct Answer: below freezing point
Question:35)Which of the following is also known as Carbolic Acid?[16-AUG-2017 Shift-3]
Options:
1) Phenol
2) Hydroxide
3) Sulphuric Acid
4) Ethanol
Correct Answer: Phenol
Question:36)Most liquids that conduct electricity are solutions of acids, bases and ______.[17-AUG-2017 Shift-1]
Options:
1) Copper
2) Aluminium
3) Salts
4) Iron
Correct Answer: Salts
Question:37)Which base is present in milk of magnesia?[17-AUG-2017 Shift-1]
Options:
1) Magnesium hydroxide
2) Ammonium hydroxide
3) Sodium hydroxide
4) Calcium hydroxide
Correct Answer: Magnesium hydroxide
Question:38)Kelvin (K) is the unit of measurement of ________.[17-AUG-2017 Shift-2]
Options:
1) Density
2) Pressure
3) Mass
4) Temperature
Correct Answer: Temperature
Question:39)What is the process of rust forming on iron called?[17-AUG-2017 Shift-2]
Options:
1) Rusting
2) Crystallisation
3) Shovel
4) Spade
Correct Answer: Rusting
Question:40)What is the name of the acid in an ant’s sting?[18-AUG-2017 Shift-1]
Options:
1) Acetic acid
2) Citric acid
3) Formic acid
4) Lactic acid
Correct Answer: Formic acid
Question:41)Which base is present in soap?[18-AUG-2017 Shift-1]
Options:
1) Sodium hydroxide
2) Silicon dioxide
3) Calcium hydroxide
4) Ammonium hydroxide
Correct Answer: Sodium hydroxide
Question:42)Metals react with sodium hydroxide to produce ___________.[18-AUG-2017 Shift-1]
Options:
1) oxygen gas
2) sodium
3) water
4) hydrogen gas
Correct Answer: hydrogen gas
Question:43)Which base is present in lime water?[18-AUG-2017 Shift-1]
Options:
1) Sodium hydroxide
2) Magnesium hydroxide
3) Calcium hydroxide
4) Ammonium hydroxide
Correct Answer: Calcium hydroxide
Question:44)Magnesium (Mg) + Oxygen (O2) = ?[18-AUG-2017 Shift-2]
Options:
1) Mg2O
2) MgO4
3) O2Mg
4) MgO
Correct Answer: MgO
Question:45)What is the reaction between an acid and a base called?[18-AUG-2017 Shift-2]
Options:
1) Desalination
2) Crystallisation
3) Neutralisation
4) Sublimation
Correct Answer: Neutralisation
Question:46) In an acid base reaction which product is produced along with a salt?[18-AUG-2017 Shift-3]
Options:
1) Hydrogen gas
2) Oxygen gas
3) Carbon dioxide
4) Water
Correct Answer: Water
Question:47)What is the process of melting also called?[18-AUG-2017 Shift-3]
Options:
1) Fusion
2) Galvanisation
3) Crystallisation
4) Evaporation
Correct Answer: Fusion
Question:48)Fire extinguishers emit which gas?[19-AUG-2017 Shift-3]
Options:
1) Carbon monoxide
2) Chlorine
3) Carbon dioxide
4) Nitrogen
Correct Answer: Carbon dioxide
Question:49)What is formed when Magnesium is burnt?[19-AUG-2017 Shift-3]
Options:
1) Baking Soda
2) Calcium Carbonate
3) Ash
4) Vinegar
Correct Answer: Ash
Question:50)A change in which no new substances are formed is called _____________.[20-AUG-2017 Shift-1]
Options:
1) Physical Change
2) Chemical Change
3) Rusting
4) Galvanisation
Correct Answer: Physical Change
Question:51)The property of metal by which it can be drawn into wires is called _____________.[20-AUG-2017 Shift-1]
Options:
1) maleability
2) viscosity
3) ductility
4) tensile strength
Correct Answer: ductility
Question:52)– A change in which a substance undergoes a change in its physical properties is called _____________.[20-AUG-2017 Shift-2]
Options:
1) Chemical Properties
2) Physical Properties
3) Chemical Change
4) Physical Change
Correct Answer: Physical Change
Question:53)The process of depositing a layer of zinc on iron is called ___________ .[20-AUG-2017 Shift-2]
Options:
1) Galvanisation
2) Crystallisation
3) Rusting
4) Baking
Correct Answer: Galvanisation
Question:54) ___________ is obtained by evaporation of sea.[20-AUG-2017 Shift-3]
Options:
1) Sugar
2) Iron
3) Salt
4) Steel
Correct Answer: Salt
Question:55)The passage of an electric current through a conducting liquid causes ___________.[20-AUG-2017 Shift-3]
Options:
1) Galvanisation
2) Evaporation
3) Physical Reaction
4) Chemical Reaction
Correct Answer: Chemical Reaction
Question:56)Blue Vitriol is another name for which of the following?[21-AUG-2017 Shift-1]
Options:
1) Copper Sulphate
2) Oxygen
3) Copper
4) Magnesium Oxide
Correct Answer: Copper Sulphate
Question:57)The rubbing surface of a matchbox has powdered glass and a little red ________________.[21-AUG-2017 Shift-1]
Options:
1) antimony
2) arsenic
3) silicon
4) phosphorus
Correct Answer: phosphorus
Question:58)Acetic Acid is another name for which of the following?[21-AUG-2017 Shift-2]
Options:
1) Vinegar
2) Baking Soda
3) Copper Sulphate
4) Magnesium Oxide
Correct Answer: Vinegar
Question:59)The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________.[21-AUG-2017 Shift-2]
Options:
1) Vinegar
2) Ash
3) Baking Soda
4) Copper
Correct Answer: Copper
Question:60)A __________ thread is actually stronger than a steel wire.[21-AUG-2017 Shift-3]
Options:
1) wool
2) cotton
3) jute
4) nylon
Correct Answer: nylon
Question:61)The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.[21-AUG-2017 Shift-3]
Options:
1) Electroplating
2) Galvanisation
3) Rusting
4) Crystallisation
Correct Answer: Electroplating
Question:62)At boiling point of liquids , its [27 August 2016- Evening Shift]
Options:
1) Temperature increases
2) Atmospheric pressure increases
3) Temperature remains constant
4) Vapour pressure decreases
Correct Answer: Temperature remains constant
Question:63)Helium is added to the oxygen supply of deep sea divers because it is _________[27 August 2016- Evening Shift]
Options:
1) less poisonous than nitrogen
2) Lighter than nitrogen
3) Readily miscible with oxygen
4) less soluble in blood than nitrogen at high pressure
Correct Answer: less soluble in blood than nitrogen at high pressure
Question:64)Terylene is a condensation polymer of ethylene glycol and which acid?[27 August 2016- Evening Shift]
Options:
1) Benzoic Acid
2) Salicylic acid
3) Phthalic acid
4) Terephthalic acid
Correct Answer: Terephthalic acid
Question:65)The temperature of a liquid is 32° F. What is its temperature in Celsius scale?[27 August 2016- Evening Shift]
Options:
1) 32° C
2) 0° C
3) 100° C
4) 212° C
Correct Answer: 0° C
Question:66)The most extensive use of molasses after fermentation is for producing [27 August 2016- Morning Shift]
Options:
1) Methanol
2) Sugar
3) Ethanol
4) Sugarcane
Correct Answer: Ethanol
Question:67)The boiling point of liquids vary as [27 August 2016- Morning Shift]
Options:
1) pressure varies
2) temperature varies
3) volume varies
4) density varies
Correct Answer: pressure varies
Question:68)Zeolite is [27 August 2016- Morning Shift]
Options:
1) hydrated ferric oxide
2) hydrated sodium aluminium silicate
3) sodium hexameta phosphate
4) sodium tetra borate
Correct Answer: hydrated sodium aluminium silicate
Question:69)The temperature of a liquid is 32° F. What is its temperature in Celsius scale? [28 August 2016- Morning Shift]
Options:
1) 32° C
2) 0° C
3) 100° C
4) 212° C
Correct Answer: 0° C
Question:70)Water is used in a hot water bag because [28 August 2016- Morning Shift]
Options:
1) It is easily available
2) It has high specific gravity
3) It has high specific heat
4) It is a liquid substance
Correct Answer: It has high specific heat
Question:71)What is contained in Chlorophyll ?[28 August 2016- Evening Shift]
Options:
1) sodium
2) potassium
3) manganese
4) magnesium
Correct Answer: magnesium
Question:72)The biogas used for cooking is a mixture of which of the following ?[28 August 2016- Evening Shift]
Options:
1) Carbon dioxide & oxygen
2) Isobutane & propane
3) Methane & carbon monoxide
4) Methane & carbon dioxide
Correct Answer: Methane & carbon dioxide
Question:73)What is the product formed when sodium bicarbonate is heated bly? [29 August 2016- Morning Shift]
Options:
1) Sodium Carbonate
2) Sodium Hydroxide
3) Sodium Peroxide
4) Sodium Monoxide
Correct Answer: Sodium Carbonate
Question:74).The most pure form of carbon among the options is [29 August 2016- Morning Shift]
Options:
1) Anthracite
2) Lampblack
3) Graphite
4) Wood Charcoal
Correct Answer: Anthracite
Question:75). Which of the following is not soluble in water? [29 August 2016- Evening Shift]
Options:
1 ) Lead sulphate
2) Zinc sulphate
3) Potassium sulphate
4) Sodium sulphate
Correct Answer: Lead sulphate
Question:76)Activated Charcoal is used to remove colouring matter from pure substances by_______ [29 August 2016- Evening Shift]
Options:
1) Bleaching
2) Oxidation
3) Adsorption
4) Reduction
Correct Answer: Adsorption
Question:77)Silver gets corroded due to ________________ in air. [30 August 2016- Afternoon Shift]
Options:
1) Oxygen
2) Hydrogen Sulphide
3) Carbon dioxide
4) Nitrogen
Correct Answer: Hydrogen Sulphide
Question:78)Which of the following is a radioactive element? [30 August 2016- Afternoon Shift]
Options:
1) Cobalt
2) Uranium
3) Argon
4) Chromium
Correct Answer: Uranium
Question:79)Silica gel is a [30 August 2016- Afternoon Shift]
Options:
1) moisturizer
2) flavouring agent
3) drying agent
4) delicious food
Correct Answer: drying agent
Question:80)Biofertilizers convert nitrogen to _________ . [30 August 2016- Afternoon Shift]
Options:
1) nitrates
2) ammonia
3) nitrogenase
4) amino acids
Correct Answer: ammonia
Question:81)Temperature of distant luminous bodies can be determined by [31 August 2016- Morning Shift]
Options:
1) Mercury thermometers
2) Gas thermometers
3) Pyrometers
4) Colour thermometers
Correct Answer: Pyrometers
Question:82)Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in [31 August 2016- Morning Shift]
Options:
1) Conduction
2) Convection
3) Radiation
4) Both conduction and convection
Correct Answer: Convection
Question:83)Magnesium is a constituent metal of __________ . [01 September 2016- Morning Shift]
Options:
1) Chlorophyll molecule
2) DNA
3) Mitochondria
4) Ribosomes
Correct Answer: Chlorophyll molecule
Question:84)Name the gas used in preparation of bleaching powder [01 September 2016- Morning Shift]
Options:
1) Oxygen
2) Hydrogen
3) Nitrogen
4) Chlorine
Correct Answer: Chlorine
Question:85)Phosphorus is kept in water because [01 September 2016- Morning Shift]
Options:
1) its ignition temperature is very high
2) its ignition temperature is very low
3) its critical temperature is high
4) its critical temperature is low
Correct Answer: its ignition temperature is very low
Question:86)The commonly used coolant in refrigerators is [01 September 2016- Morning Shift]
Options:
1) Ammonia
2) Nitrogen
3) Freon
4) Oxygen
Correct Answer: Freon
Question:87)Which of the following is used as anaesthetics?[01 September 2016- Evening Shift]
Options:
1) N2
2) N2O
3) CH4
4) CO2
Correct Answer: N2O
Question:88)Which is the heaviest metal among the following?[01 September 2016- Evening Shift]
Options:
1) Gold
2) Silver
3) Iron
4) Copper
Correct Answer: Gold
Question:89)Nitrification is the biological process of converting [02 September 2016- Evening Shift]
Options:
1) N2 into nitrate
2) N2 into nitrite
3) Ammonia into nitrite
4) Ammonia into N2
Correct Answer: Ammonia into nitrite
Question:90)Trinitrotoluene is [02 September 2016- Evening Shift]
Options:
1) used to melt metals
2) used to fuse two metals
3) used as an abrasive
4) used as an explosive
Correct Answer: used as an explosive
Question:91)An eudiometer measures [02 September 2016- Evening Shift]
Options:
1) Atmospheric pressure
2) Time
3) Volume of gases
4) Vapour pressure
Correct Answer: Volume of gases
Question:92)Potassium Permanganate is used for purifying drinking water, because_________ [02 September 2016- Evening Shift]
Options:
1) It is a reducing agent
2) It is an oxidising agent
3) It is a sterilising agent
4) It dissolves the impurities of water
Correct Answer: It is an oxidising agent
Question:93)0°K is equivalent to [03 September 2016- Morning Shift]
Options:
1) 273°C
2) -273°C
3) 0°C
4) 100°C
Correct Answer: -273°C
Question:94)Which of the following is not a donor atom? [03 September 2016- Morning Shift]
Options:
1) Phosphorus
2) Antimony
3) Arsenic
4) Aluminium
Correct Answer: Aluminium
Question:95)Bee sting contains________________ [03 September 2016- Evening Shift]
Options:
1) An acidic liquid
2) a salt solution
3) an alkaline liquid
4) a corrosive liquid
Correct Answer: An acidic liquid
Question:96)Besides CO2, the other green house gas is [04 September 2016- Morning Shift]
Options:
1) CH4
2) N2
3) Ar
4) O2
Correct Answer: CH4
Question:97)The manufacturing of iron from iron-ore involves the process of ? [06 September 2016]
Options:
1) Oxidation
2) Reduction
3) Electrolysis
4) Fractional distillation
Correct Answer: Reduction
Question:98)n emulsion is a colloidal solution of?[06 September 2016]
Options:
1) Liquid in liquid
2) Solid in liquid
3) Gas in solid
4) Solid in Solid
Correct Answer: Liquid in liquid
Question:99)The food in Onion is stored in the form of _______ ?[06 September 2016]
Options:
1) Cellulose
2) Protein
3) Starch
4) Sugar
Correct Answer: Cellulose
Question:100)When iron rusts, its weight ….. [07 September 2016- Morning Shift]
Options:
1) decreases
2) increases
3) remains the same
4) first increases and then decreases
Correct Answer: increases
Question:101)When iron rusts, its weight ….. [07 September 2016- Morning Shift]
Options:
1) decreases
2) increases
3) remains the same
4) first increases and then decreases
Correct Answer: increases
Question:102)What are Aldehydes ? [08 September 2016- Evening Shift]
Options:
1) Mild oxidising agents
2) Strong oxidising agents
3) Strong reducing agents
4) Mild reducing agents
Correct Answer: Strong reducing agents
Question:103)Which of the following gases is known as “Laughing Gas”? [08 September 2016- Evening Shift]
Options:
1) Nitrous oxide
2) Nitrogen peroxide
3) Nitrogen
4) Nitric oxide
Correct
Answer: Nitrous oxide
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