Who discovered that the chemical element Silicon is isolated from silica sands via reduction with potassium metal? MCQ with Answer and Explanation

Question

Share Report Error

Who discovered that the chemical element Silicon is isolated from silica sands via reduction with potassium metal?

A. John Dalton

B. Antoine Lavoisier

C. Jöns Jacob Berzelius

D. Humphry Davy

Answer: Option C

Solution (By JKSSB Mock Tests)

Berzelius successfully isolated pure amorphous elemental silicon in 1824 by heating potassium fluorosilicate.

This question belongs to: Static General Knowledge Inventions and Discoveries

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Inventions and Discoveries Questions

Question #1

Share Report

The invention of the common household vacuum storage device known as the Thermos Flask was developed by whom?

A. Thomas Edison

B. Willis Carrier

C. James Joule

D. James Dewar

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
Sir James Dewar invented the double-walled vacuum-insulated silvered glass flask in 1892 to isolate cryogenic liquefied gases.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

Share Report

Who discovered the primary biological pattern detailing that DNA nucleotide bases match in specific pairs ($A=T, G=C$)?

A. Rosalind Franklin

B. James Watson

C. Francis Crick

D. Erwin Chargaff

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
Chargaff's Rules established the 1:1 stoichiometric ratios of purines to pyrimidines, providing a key clue for Watson and Crick's model.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3

Share Report

The invention of the common mechanical rotary print engine that accelerated newspaper publishing was patented by whom?

A. William Caxton

B. Christopher Sholes

C. Johannes Gutenberg

D. Richard March Hoe

View Answer & Solution Discuss

Get Complete Subject PDF for Static General Knowledge

Correct Answer: Option D

Explanation:
Richard March Hoe invented the rotary type press in 1843, placing text matrices on revolving drums rather than flat tables.

This question belongs to: Static General Knowledge Inventions and Discoveries

Explore All Inventions and Discoveries MCQs