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Chemistry 1488 MCQs [All-Courses]

oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

The snow on the mountains does NOT melt all at once when it is heated by the sun because:

A it becomes very hard

B it reflects most of the heat from the sun

C it has a low specific heat capacity

D it has a high latent heat of fusion

Review Detailed Answer

Correct Answer: it has a high latent heat of fusion

Optic fibres are used in :

A CAT scans

B X-ray photos

C Ultrasound scans

D Endoscopy

Review Detailed Answer

Correct Answer: Endoscopy

The radio-active element used in heart pacemakers is ___________?

A Uranium

B Deuterium

C Plutonium

D Radium

Review Detailed Answer

Correct Answer: Plutonium

Where does the oxygen that keeps us alive come from?

A Carbon dioxide

B Carbonates absorbed from soil

C Oxides of minerals

D Water

Review Detailed Answer

Correct Answer: Water

What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?

A Radium dating

B Uranium dating

C Carbon dating

D Deuterium dating

Review Detailed Answer

Correct Answer: Carbon dating

Milk tastes sour when kept in the open for sometime due to the formation of __________?

A lactic acid

B citric acid

C acetic acid

D carbonic acid

Review Detailed Answer

Correct Answer: lactic acid

Who discovered carbohydrates fats and proteins?

A William Prout

B Jons Jacob Berzelius

C Anselme Payen

D Walter Bradford Cannon

Review Detailed Answer

Correct Answer: William Prout

Hookworm is a parasitic worm that infects ______?

A large intestine

B liver

C lungs

D small intestine

Review Detailed Answer

Correct Answer: small intestine

Nitrate (NO3) ions are obtained by the process of __________?

A Nitrification

B Fermentation

C Denitrification

D None of these

Review Detailed Answer

Correct Answer: Nitrification

Which one of the following results in the discovery of proton.

A Cathode rays

B Canal rays

C X-rays

D Alpha rays

Review Detailed Answer

Correct Answer: Canal rays

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Chemistry 1488 MCQs [All-Courses]

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All Topics 1488

The snow on the mountains does NOT melt all at once when it is heated by the sun because:

Optic fibres are used in :

The radio-active element used in heart pacemakers is ___________?

Where does the oxygen that keeps us alive come from?

What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?

Milk tastes sour when kept in the open for sometime due to the formation of __________?

Who discovered carbohydrates fats and proteins?

Hookworm is a parasitic worm that infects ______?

Nitrate (NO3) ions are obtained by the process of __________?

Which one of the following results in the discovery of proton.