Who discovered that electrical currents passing through solutions break down compounds chemically, formalizing the Laws of Electrolysis? MCQ with Answer and Explanation

Question

Who discovered that electrical currents passing through solutions break down compounds chemically, formalizing the Laws of Electrolysis?

A. Humphry Davy

B. Svante Arrhenius

C. Alessandro Volta

D. Michael Faraday

Answer: Option D

Solution (By JKSSB Mock Tests)

Michael Faraday established the quantitative laws of electrolysis, introducing terms like anode, cathode, and ion.

This question belongs to: Static General Knowledge Inventions and Discoveries

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The first practical mechanical sewing machine was patented by whom in 1846?

A. Eli Whitney

B. Walter Hunt

C. Isaac Singer

D. Elias Howe

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Correct Answer: Option D

Explanation:
Elias Howe patented the first practical lockstitch sewing machine in the United States in 1846.

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Question #2

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The invention of the modern steam turbine, which enabled large-scale thermal electric power generation, was made by whom?

A. Thomas Newcomen

B. Charles Parsons

C. George Stephenson

D. James Watt

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Correct Answer: Option B

Explanation:
Sir Charles Parsons invented the multi-stage steam turbine in 1884, transforming maritime shipping and electric grids.

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Question #3

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Who invented the mercury thermometer in 1714?

A. Daniel Gabriel Fahrenheit

B. Galileo Galilei

C. Anders Celsius

D. Lord Kelvin

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Correct Answer: Option A

Explanation:
Daniel Gabriel Fahrenheit invented the mercury-in-glass thermometer in 1714 and developed the Fahrenheit scale.

This question belongs to: Static General Knowledge Inventions and Discoveries

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