Who discovered the neutron in the year 1932? MCQ with Answer and Explanation

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Who discovered the neutron in the year 1932?

A. Niels Bohr

B. J.J. Thomson

C. Ernest Rutherford

D. James Chadwick

Answer: Option D

Solution (By JKSSB Mock Tests)

James Chadwick discovered the neutron in 1932, proving its existence as a neutral particle in the nucleus.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

The invention of the modern mechanical reaper, which automated grain harvesting, was patented by whom?

A. Eli Whitney

B. Cyrus McCormick

C. James Hargreaves

D. John Deere

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Correct Answer: Option B

Explanation:
Cyrus McCormick patented the horse-drawn mechanical reaper in 1834, transforming agricultural output.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

The invention of the high-power chemical explosive TNT (Trinitrotoluene) was originally intended for use as what?

A. Disinfectant

B. Mining agent

C. Rocket fuel

D. Yellow dye

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Correct Answer: Option D

Explanation:
German chemist Julius Wilbrand discovered TNT in 1863 as a textile dye; its explosive potential was not recognized until decades later.

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Question #3

The invention of the common mathematical calculation layout known as the matrix determinants was developed independently by whom?

A. Blaise Pascal

B. René Descartes

C. Gottfried Wilhelm Leibniz and Seki Takakazu

D. Isaac Newton

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Correct Answer: Option C

Explanation:
Leibniz and Japanese mathematician Seki Takakazu independently developed algebraic determinant patterns to resolve linear simultaneous groupings.

This question belongs to: Static General Knowledge Inventions and Discoveries

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