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Chemistry Quiz - General Science Objective Questions and Answers for Competitive Exams

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General awareness multiple choice questions and answers on chemistry with five mcqs. Each science quiz objective question for competitive exams SSC, UPSC, CDS, Railways, psc exams of Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Orissa, Punjab, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal, Chhattisgarh, Uttarakhand, Jharkhand, Telangana has four options as possible answers. Choose your option and view given correct answer.
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(1) The system that uses radioactivity to decide the period of materials of pre-historic period is :
[A] Radium dating
[B] Uranium dating
[C] Carbon dating
[D] Deuterium dating

Comment

Answer: Option [C]
(2) Which of the following is a carbohydrate ?
[A] Nylon
[B] Cane-sugar
[C] Turpentine
[D] Hydrogen peroxide

Comment

Answer: Option [B]

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(3) Maximum iron ore is found in which of the following states ?
[A] FeCO3
[B] Fe2O3
[C] Fe3O4
[D] FeS2

Comment

Answer: Option [B]
(4) Commercial nitric acid is coloured because it contains dissolved :
[A] Oxygen
[B] Nitrous oxide
[C] Nitrogen dioxide
[D] Colored impurities

Comment

Answer: Option [C]
(5) Which gas is used for artificial fruit ripening of green fruit ?
[A] Ethylene
[B] Acetylene
[C] Ethane
[D] Methane

Comment

Answer: Option [A]
(6) What is the chemical name for ‘baking soda’?
[A] Sodium carbonate
[B] Sodium bicarbonate
[C] Sodium nitrite
[D] Sodium nitrate

Comment

Answer: Option [B]
(7) Which of the following gases is present under pressure in soft drinks ?
[A] Oxygen
[B] Nitrogen
[C] Carbon dioxide
[D] Nitrous oxide

Comment

Answer: Option [C]
(8) Which radioactive element used in heat pacemakers ?
[A] Uranium
[B] Deuterium
[C] Plutonium
[D] Radium

Comment

Answer: Option [C]
(9) The anode in a dry cell consists of :
[A] Copper
[B] Zinc
[C] Cadmium
[D] Graphite

Comment

Answer: Option [B]
(10) Milk is a colloidal system in which :
[A] Water is dispersed in fat
[B] Fat is dispersed in water
[C] Fat and water are dispersed in each other
[D] Fat is dissolved

Comment

Answer: Option [B]

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