Chemistry in Everyday Life MCQ Quiz - Objective Question with Answer for Chemistry in Everyday Life - Download Free PDF

Last updated on Jun 11, 2025

Chemistry in Everyday Life MCQs cover multiple choice questions on the applications of chemistry in daily life, a significant part of the general chemistry curriculum. Topics include drugs and their classification, cleansing agents, food preservatives, and polymers. Mastery of these subjects will assist in accurately answering Chemistry in Everyday Life MCQs. Candidates preparing for govt. exams with General Science as one of the syllabus components must go through the MCQs and key points related to Chemistry in Everyday Life. Give a quick boost to your exam preparation by solving Chemistry in Everyday Life MCQs with answers right away.

Latest Chemistry in Everyday Life MCQ Objective Questions

Chemistry in Everyday Life Question 1:

The chemical name of bakelite is

  1. polytetrafluoroethylene
  2. phenol formaldehyde
  3. phenol acetaldehyde
  4. urea formaldehyde
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : phenol formaldehyde

Chemistry in Everyday Life Question 1 Detailed Solution

Explanation:

Bakelite is a polymer that is made up of the monomers phenol and Formaldehyde. This phenol-Formaldehyde is a Thermosetting polymer.

Some important properties of Bakelite are listed below.

  • It can be easily Molded.
  • Very smooth molding can be obtained from this polymer.
  • Bakelite moldings are heat resistant and scratch-resistant.
  • Owing to its low electrical conductivity, bakelite is resistant to electric current.

Bakelite structure:

Important Points

  • Bakelite is used for making electrical switches.
  • Melamine is used for floor tiles.

Chemistry in Everyday Life Question 2:

Silver ware turns black after a period of time due to the formation of __________.

  1. Nitrate coating on silver
  2. Sulphide coating on silver
  3. Chloride coating on silver
  4. Oxide coating on silver
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : Sulphide coating on silver

Chemistry in Everyday Life Question 2 Detailed Solution

The correct answer is Sulphide coating on silver.

  • Silver does not react with oxygen as it is highly unreactive.

Key Points

  • But over time its surface turns black due to exposure to the air.
  • Due to the availability of Hydrogen Sulphide (H2S) in the air, a layer of silver Sulphide (Ag2S) is formed and silver loses its shine.
  • This blackness can be minimized by covering it with polythene.
  • This blackness is a temporary effect on the surface and can be removed by rubbing with a mild soap solution prepared in warm water

Chemistry in Everyday Life Question 3:

Coating of which plastic is used on the uniforms of firemen to make them flame resistant?

  1. Polythene
  2. PVC
  3. Melamine
  4. Bakelite
  5. None of the above

Answer (Detailed Solution Below)

Option 3 : Melamine

Chemistry in Everyday Life Question 3 Detailed Solution

The correct answer is Melamine.

Concept:

Plastic is also a polymer like synthetic fibre.
There are two types of plastics: thermoplastics and thermosetting plastics.

  • Thermoplastics
    • Some plastic gets deformed easily on heating and can be bent easily are known as thermoplastics.
    • Polythene and PVC are some examples of thermoplastics.
    • Thermoplastics are used in the manufacturing of combs, toys, and various containers.
  • Thermosetting plastics
    • Some plastics, on the other hand,  which when moulded once, can not be softened by heating are known as thermosetting plastics.
    • Bakelite and melamine are two examples of thermosetting plastics.

Explanation:

Melamine

  • Melamine is a thermosetting plastic.
  • Melamine resists fire and can tolerate heat better than other plastics.
  • Melamine is a poor conductor of heat and is fire resistant
  • The majority of synthetic fibers are poor conductors of heat and electricity. 
  • Melamine, on the other hand, is used as a flame-resistant coating on firefighter uniforms. 
  • The uniforms of firemen have a coating of melamine plastic to make them flame resistant. 
  • Melamine is also used for making floor tiles, kitchenware, and fabrics which resist fire.
  • It is also used to prevent the spread of fire in airplanes, buses, and other vehicles.

Additional InformationBakelite

  • Bakelite is a thermosetting plastic.
  • Bakelite on heating becomes malleable and liquefiable.
  • However, as it cools, it becomes permanently rigid and hard, as it is a thermosetting plastic.
  • It is used for making electrical switches, handles of various utensils, etc. 

PVC

  • PVC is a thermoplastic
  • PVC stands for Poly Vinyl Chloride.
  • PVC has two basic forms: rigid and flexible.
  • It is used in the manufacturing of rain (PVC) coats, handbags, vinyl flooring, and water pipes.

Polythene

  • Polythene is a thermoplastic.
  • Polyethylene is a compound made from the polymerization of ethylene.
  • Polyethylene is a lightweight, versatile synthetic plastic.
  • It is the most commonly used plastic in the world, with applications ranging from shopping bags and clear food wrap to automobile fuel tanks and detergent bottles.

Chemistry in Everyday Life Question 4:

The major component of pyrex glass is

  1. PbO
  2. B2O3
  3. Al2O3
  4. MgO
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : B2O3

Chemistry in Everyday Life Question 4 Detailed Solution

The correct answer is B2O3.

CONCEPT:

  • Glass is a transparent material obtained when a complex mixture of highly viscous silicates, upon moderately rapid cooling, solidifies to an amorphous rigid body without crystallization.
  • It is essentially a supercooled liquid.
  • Different types of glasses: Soda glass, Pyrex glass, Jena glass etc.


EXPLANATION:

  • Pyrex glass is borosilicate glass, which contains B2O3 as its major ingredient.
  • It is obtained by fusing together quartz/sand, sodium carbonate, aluminum oxide, boric oxide.
  • It has a very low coefficient of thermal expansion and is able to withstand large temperature changes.
  • It is used for making laboratory glassware and cookware that can be heated to high temperatures.

Chemistry in Everyday Life Question 5:

Food cans are coated with tin and NOT zinc because ________.

  1. Zinc is less reactive than tin
  2. Zinc has higher melting point than tin
  3. Zinc is costlier than tin
  4. Zinc is more reactive than tin
  5. None of the above

Answer (Detailed Solution Below)

Option 4 : Zinc is more reactive than tin

Chemistry in Everyday Life Question 5 Detailed Solution

  • The correct answer is option 4, i.e., Zinc is more reactive than tin.
  • Food cans are coated with tin and NOT zinc because zinc is more reactive than tin.
  • Zinc being more reactive, it reacts with the organic acids present in the food. Due to this it can get dissolved in the food substance and make the food poisonous.
  • It is due to this reason that tin, a less reactive metal is used.
  • Name of the alloy Made up of
    Brass Copper and Zinc
    Bronze Copper and Tin
    German Silver Copper, Zinc, and Nickel
    Nickel Steel Iron and Nickel

Top Chemistry in Everyday Life MCQ Objective Questions

Chemical name of washing soda is:

  1. Sodium chloride
  2. Sodium hydrogen carbonate
  3. Sodium carbonate
  4. Sodium hydroxide

Answer (Detailed Solution Below)

Option 3 : Sodium carbonate

Chemistry in Everyday Life Question 6 Detailed Solution

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The correct answer is Sodium carbonate.

Explanation:

  • Washing soda is a chemical compound with the formula Na2CO3, known as sodium carbonate, and it's a salt of carbonic acid.
  • Properties of a Washing soda:
    • It is a transparent crystalline solid.
    • It is one of the few metal carbonates which are soluble in water.
    • It is alkaline with a pH level of 11, it turns red litmus to blue.
    • It has detergent properties or cleansing properties because it can remove dirt and grease from dirty clothes, etc.
    • It attacks dirt and grease to form water-soluble products, which are then washed away on rinsing with water.

Important Points

Some common chemical compounds with their common names are:

Chemical Compounds

Common Names

Chemical Formulas

Sodium Bicarbonate

Baking Soda

NaHCO3

Calcium ChlorohypoChlorite

Bleaching Powder

CaOCl2

Sodium Hydroxide

Caustic Soda

NaOH

Sodium Carbonate

Washing Soda

Na2CO3 .10 H2O

Carbon Dioxide

Dry Ice

CO2

Copper Sulphate

Blue Vitriol

CuSO4

Ferrous Sulphate

Green Vitriol

FeSO4

Sulphuric Acid

Oil of vitriol

H2SO4

Calcium Sulphate Hemihydrate

Plaster of Paris

(CaSO4. 1/2H2O)

Calcium Sulphate Dihydrate

Gypsum

CaSO4.2H2O

Calcium Hydroxide

Slaked Lime

Ca(OH)2

Chile Saltpeter

Sodium nitrate

NaNO3

Saltpetre

Potassium nitrate

KNO3

Muriatic acid

Hydrochloric acid

HCl

 

Which acid is present in sour milk?

  1. Citric Acid
  2. Acetic Acid
  3. Glycolic Acid
  4. Lactic Acid

Answer (Detailed Solution Below)

Option 4 : Lactic Acid

Chemistry in Everyday Life Question 7 Detailed Solution

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The correct answer is Lactic Acid.

Key Points

  • Lactic acid is present in Sour milk or curd.
  • The sourness of the milk is due to the presence of lactic acid.
  • Human beings feel tired due to the accumulation of lactic acid in the muscles.

Additional Information

Natural source Acid
Vinegar Acetic acid
Orange Citric acid
Tamarind Tartaric acid
Tomato Oxalic acid

Iodine test is used to check the presence of

  1. Cholesterol
  2. Fat
  3. Protein
  4. Carbohydrates

Answer (Detailed Solution Below)

Option 4 : Carbohydrates

Chemistry in Everyday Life Question 8 Detailed Solution

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The correct answer is carbohydrates.

Key Points

  • An iodine test is used to check the presence of carbohydrates.
  • Carbohydrates are organic compounds in which the ratio of Carbon, Hydrogen, and Oxygen is 1: 2: 1.
  • Carbohydrates are classified into three major groups:
    • Monosaccharides
    • Oligosaccharides
    • Polysaccharides
  • In the iodine test if the sample contains carbohydrates then the sample turns blue-black in colour with a few drops of a potassium iodide solution.

Additional Information

  • Proteins are tested using the Biuret test for proteins. 
  • Tests to determine fats are the Acrolein test, Baudouin test, and Hubble's test.

Which of the following compound is known as caustic soda?

  1. NaOH
  2. NaHCO3
  3. NaCl
  4. Na2CO3

Answer (Detailed Solution Below)

Option 1 : NaOH

Chemistry in Everyday Life Question 9 Detailed Solution

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Explanation:

  • Sodium hydroxide (NaOH) is known as ‘Caustic Soda’.
  • Some common chemical compounds with their common names are:

Chemical Compounds

Common Names

Chemical Formulas

Sodium Bicarbonate

Baking Soda

NaHCO3

Calcium ChlorohypoChlorite

Bleaching Powder

Ca(ClO)2

Sodium Hydroxide

Caustic Soda

NaOH

Sodium Carbonate

Washing Soda

Na2CO3 .10 H2O

Carbon Dioxide

Dry Ice

CO2

Copper Sulphate

Blue Vitriol

CuSO4

Ferrous Sulphate

Green Vitriol

FeSO4

Sulphuric Acid

Oil of vitriol

H2SO4

Calcium Sulphate Hemihydrate

Plaster of Paris

(CaSO4. 1/2H2O)

Calcium Sulphate Dihydrate

Gypsum

CaSO4.2H2O

Calcium Hydroxide

Slaked Lime

Ca(OH)2

Sodium nitrate

Chile Saltpeter

NaNO3

Potassium nitrate

Saltpetre

KNO3

Hydrochloric acid

Muriatic acid

HCl

Which of the following metal is kept in wax?

  1. Sodium
  2. Lithium
  3. Silver
  4. Magnesium

Answer (Detailed Solution Below)

Option 2 : Lithium

Chemistry in Everyday Life Question 10 Detailed Solution

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The correct answer is Lithium. 

Explanation:

  • Group I elements are called alkali metals because they dissolve in water to form soluble hydroxides.
  • To prevent Group I elements from reacting with water moisture in the air they are kept in kerosene oil.
    • Example: Sodium, Potassium.
  • But Lithium is the lightest metal and it floats above the kerosene surface and reacts with atmospheric oxygen or moisture.

So, Lithium is kept in wax.

Drug which reduce fever is known as

  1. Barbiturates
  2. Antiseptic
  3. Antipyretic
  4. Antibiotic

Answer (Detailed Solution Below)

Option 3 : Antipyretic

Chemistry in Everyday Life Question 11 Detailed Solution

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The correct answer is Antipyretic.

  • Antipyretic is a drug that reduces fever.
    • Antipyretics cause the hypothalamus to override a prostaglandin-induced increase in temperature.
    • The body then works to lower the temperature, which results in a reduction in fever. 

Additional Information

  • Barbiturates are a type of central nervous system (CNS) depressant used to treat insomnia, seizures, and headaches​.
  • Antiseptic slows or stops the growth of micro-organisms on external surfaces of the body and helps to prevent infections.
  • Antibiotics include a range of powerful drugs that kill bacteria or slow their growth. 
    • They treat bacterial infections. 

Sodium hydrogen carbonate is commonly known as 

  1. Gypsum
  2. Baking Soda
  3. Washing Soda
  4. Slaked lime

Answer (Detailed Solution Below)

Option 2 : Baking Soda

Chemistry in Everyday Life Question 12 Detailed Solution

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The Correct Answer is Baking Soda.

  • Sodium hydrogen carbonate (NaHCO3) or sodium bicarbonate:
    • Sodium bicarbonate is commonly known as baking soda.
    • Sodium bicarbonate in baking soda quickly neutralizes stomach acid.
    • Sodium bicarbonate is a white crystalline solid.
    • It is used in baking products like cakes, cookies, etc.

Additional Information

  • Gypsum (CaSO4·2H2O):
    • Gypsum is a common sulfate mineral composed of calcium sulfate dihydrate.
    • Gypsum is widely used in the manufacture of wallboard, cement, plaster of Paris, etc.
  • Washing Soda:
    • It is commonly known as Na2CO3 or sodium carbonate.
    • It is used in the softening of hard water.
    • It is commonly used as a cleaning agent for domestic purposes.
    • It is also used in the manufacturing of paper, soap, textiles, paints, etc.
  • Calcium Hydroxide:
    • It is the chemical formula for Calcium hydroxide (Ca(OH)2).
    • It is also known as slaked lime.
    • It is used in sewage treatment, paper production, and food processing, etc.

The non-metal used in the purple coloured solution applied on wounds as an antiseptic is

  1. Chlorine
  2. Iodine
  3. Bromine
  4. Sulphur

Answer (Detailed Solution Below)

Option 2 : Iodine

Chemistry in Everyday Life Question 13 Detailed Solution

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Explanation:

Uses of metal & non-metals in daily life:

Metals:

  • Metals are used in making machinery, automobiles, aeroplanes, trains, satellites, industrial gadgets, cooking utensils, water boilers, etc. 

Non-metals:

  • Non-metal is essential for our life which all living beings inhale during breathing (Oxygen).
  • Non-metals used in fertilisers to enhance the growth of plants (Nitrogen, Ammonia etc.)
  • Non-metal used in water purification process (Potash alum).
  • Non-metal used in the purple coloured solution which is applied on wounds (Iodine) as an antiseptic called a tincture. When this solution is applied on the wound, it sterilizes the wound and makes it free from microbial infection and thus prevent the wound from being infected.
  • Non-metals used in crackers (Sulphur, phosphorous etc.).

The main constituent of Biogas and CNG is:

  1. Propane
  2. Hydrogen Sulphide
  3. Methane
  4. Ethane

Answer (Detailed Solution Below)

Option 3 : Methane

Chemistry in Everyday Life Question 14 Detailed Solution

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Concept:

Biogas: The mixture of gases that are produced due to the breakdown of organic matter in the absence of oxygen is called biogas.

  • The major constituent of biogas is Methane and Carbon dioxide while some traces of H2S and ammonia are also there.
  • It is released when the Cow, Buffalo, and Pig manure is processed Anaerobically i.e. in the absence of Oxygen.
  • Biogas can be used for Space Heating, Generation of Electricity, Fuel for Cooking, etc
Biogas Composition
Sl.No. Compound Percentage
1 Methane 50 - 75%
2 Carbon dioxide 25 - 50%
3 Nitrogen 10 - 20%
4 Hydrogen 0 - 1%
5 Hydrogen sulfide 0 - 3%
6 Oxygen 0 - 0.5%

 

Compressed Natural Gas (CNG): it is composed of compressed Methane and Ethane.

  • It can be used in place of gasoline, diesel fuel and liquefied petroleum gas (LPG)

Explanation:

  • The main constituent of both Biogas and CNG is Methane.
  • So the correct option is Methane.

Note: Biogas is a Clean Renewable Energy Source and even it is Economically Friendly.

Additional Information

Methane is commonly known as Marsh Gas.

  • Methane is the hydrocarbon having the lowest molecular mass with the chemical formula CH4.
  • It is called Marsh gas because it is released in huge amounts from marshes where anaerobic bacteria decompose matter.
  • It was discovered by Alessandro Volta in 1776.
  • It is the main constituent of Biogas and Compressed Natural Gas (CNG).
  • It is a Greenhouse gas and its global warming potential is 28 - 36 times as that of CO2.
  • Paddy fields are also a huge source of Methane emissions.

Which gas is passed in the water to kill bacteria?

  1. Bromine 
  2. Chlorine
  3. Iodine
  4. Nitrogen

Answer (Detailed Solution Below)

Option 2 : Chlorine

Chemistry in Everyday Life Question 15 Detailed Solution

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The correct answer is Chlorine.

Key Points

  • Chlorine kills pathogens such as bacteria and viruses by breaking the chemical bonds in their molecules.
    • Disinfectants that are used for this purpose consist of chlorine compounds which can exchange atoms with other compounds, such as enzymes in bacteria and other cells.
    • When enzymes come in contact with chlorine, one or more of the hydrogen atoms in the molecule are replaced by chlorine.
    • This causes the entire molecule to change shape or fall apart.
    • When enzymes do not function properly, a cell or bacterium will die.
    • Chlorine effectively kills a large variety of microbial waterborne pathogens, including those that can cause typhoid fever, dysentery, cholera and Legionnaires' disease. 

Additional Information

  • Bromine is a chemical element with the symbol Br and atomic number 35. Bromine is used in many areas such as agricultural chemicals, dyestuffs, insecticides, pharmaceuticals and chemical intermediates.
  • Iodine is an essential mineral commonly found in seafood.
  • A colourless, odourless gas Nitrogen is important to the chemical industry.
    • It is used to make fertilisers, nitric acid, nylon, dyes and explosives.
    • To make these products, nitrogen must first be reacted with hydrogen to produce ammonia.

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