Chemistry in Daily Life — Part 3: 40 MCQs with Explanations

Hydrogen gas is the correct answer to “When an acid reacts with a metal, which one of the following gas is usually liberated”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Conversion of water into steam is the correct answer to “Which of the following is not a chemical reaction”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Kangaroo rat is the correct answer to “Name the animal which can live without water in its entire life”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Europa is the correct answer to “NASA scientists have recently detected water vapor on which Jupiter’s moon”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Phytoplankton is the correct answer to “Which of the following organisms releases molecular oxygen into water”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

lightest metal is Lithium .

Reverse Osmosis is the correct answer to “Which of the following is used in water purification”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Freon is the correct answer to “What is the name of the gas used in an air conditioner”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Carbon Dioxide is the correct answer to “Which gas is used to extinguish fire”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Carbon Monoxide gas is released when coal is burnes in ln lack of Oxygen.

Charles Law is the correct answer to “According to which law gas is directly proportional to temperature”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Tannic is the correct answer to “Which of the following acid is used in Ink”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Lilly is the correct answer to “Which of the following flower is called Queen of Water”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Rain water is the correct answer to “Which is the purest form of water”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Which one of the following represents a chemical change Sublimation of iodine .

What is known the cold and dense air blowing down from the mountain slope during the night Katabatic wind .

Carbon Dioxide is the correct answer to “Which gas is used in preparation of Soda water”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Acetylene and oxygen is the correct answer to “Which of the following mixture of gases is required in gas welding”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The chemical name of “Acid” (Tezaab) is Sulfuric acid .

Soap is Salt .

O3 is the correct answer to “What is the chemical formula of Ozone”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Copper is the correct answer to “The toxicity of which of the following heavy metals leads to Liver cirrhosis”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

4% is the correct answer to “The carbon dioxide content in the air that we exhale is about”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Nitrogen gas is the correct answer to “Which Gas is included in Fry Chips Packets for safety”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Montgolfier is the correct answer to “Who invented the Hot Air Balloon”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Chemically finger nails are made up of protein .

Chromium is the correct answer to “Which metal is added to steel to make it stainless steel”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Oxygen is the correct answer to “Which of the following gases do plants and trees give out during photosynthesis”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Aspirin is the correct answer to “What is the common name for the drug acetyl salicylic acid”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Epsom salt is chemically known as Magnesium Sulfate .

Air contains maximum amount of nitrogen .

Air Conditioning Controls: All of The Above .

Rayon is the correct answer to “Which synthetic fibre is known as artificial Silk”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The alloy of aluminium used for making magnet is Alnico .

Carbon monoxide is the correct answer to “Which of the following is the most toxic gas”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Ammonia is the correct answer to “Which one of the following gases is readily soluble in water at room temperature”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Osmium is the correct answer to “Which is the heaviest metal”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Chlorine is the correct answer to “For water purification, we use”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Chromium is the correct answer to “What is used in making of alloys”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Methane is the correct answer to “The major part of natural gas, petroleum and coal consists of”. Items of this type are drawn from the Chemistry in Daily Life — Part 3 syllabus of Pakistani competitive exams, where the fact is tested verbatim.