Who is known as the father of modern chemistry? MCQ with Answer and Explanation

Question
Who is known as the father of modern chemistry?
A. Dmitri Mendeleev
B. Isaac Newton
C. Antoine Lavoisier
D. Marie Curie
Answer: Option C
Solution (By JKExamLibrary)
Antoine Lavoisier, an 18th-century French chemist, is widely considered the father of modern chemistry. He transformed chemistry from a qualitative to a quantitative science, established the law of conservation of mass, debunked the phlogiston theory, and helped reform chemical nomenclature.
This question belongs to: Science chemistry

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Practice More chemistry Questions

Question #1
During electrolysis, reduction takes place at the:
A. Cathode
B. Salt bridge
C. Anode
D. Electrolyte
Discuss

Correct Answer: Option A

Explanation:
In an electrochemical cell, reduction (gain of electrons) always occurs at the cathode, regardless of whether the cell is electrolytic or galvanic. At the anode, oxidation (loss of electrons) occurs. Memory aid: 'RED CAT' (REDuction at CAThode), 'AN OX' (OXidation at ANode). In electrolysis, the cathode is connected to the negative terminal of the battery, attracting cations which get reduced.
This question belongs to: Science chemistry
Question #2
Niels Bohr's atomic model successfully explained the spectrum of:
A. Carbon atom
B. Helium atom
C. Oxygen atom
D. Hydrogen atom
Discuss

Correct Answer: Option D

Explanation:
Bohr's model (1913) could accurately predict the line spectrum of hydrogen and hydrogen-like ions (single-electron species like He⁺, Li²⁺) by introducing quantized energy levels and angular momentum. It failed for multi-electron atoms due to electron-electron interactions. The model explained the Balmer series of hydrogen. Modern quantum mechanics with Schrödinger equation replaced it. Bohr also introduced the concept of stationary orbits.
This question belongs to: Science chemistry
Question #3
The process of adding chlorine to water to kill bacteria is called:
A. Filtration
B. Ozonation
C. Chlorination
D. Distillation
Discuss

Correct Answer: Option C

Explanation:
Chlorination is the disinfection of water using chlorine or chlorine compounds to destroy pathogenic microorganisms. Chlorine reacts with water forming hypochlorous acid (HOCl) which is a strong germicide. Ozonation uses ozone; distillation involves boiling and condensation. Filtration removes particulate matter but not all microorganisms. Chlorination is cost-effective and provides residual protection, though it may produce trihalomethanes as by-products.
This question belongs to: Science chemistry
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