Who was the first person to discover radioactive elements? MCQ with Answer and Explanation

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Who was the first person to discover radioactive elements?

A. Ernest Rutherford

B. Wilhelm Röntgen

C. Henri Becquerel

D. Marie and Pierre Curie

Answer: Option D

Solution (By JKSSB Mock Tests)

The Curies isolated polonium and radium in 1898.

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Question #1

Who was the first black President of the United States?

A. George Washington

B. Bill Clinton

C. Abraham Lincoln

D. Barack Obama

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Correct Answer: Option D

Explanation:
Barack Obama was the first African American President.

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Question #2

Which was the first major battle in World War I?

A. Battle of Tannenberg

B. Battle of the Marne

C. Battle of the Somme

D. Battle of Verdun

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Correct Answer: Option B

Explanation:
The Battle of the Marne in 1914 was the first major battle of WWI on the Western Front.

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Question #3

Who discovered the first quasar?

A. Allan Sandage

B. Edwin Hubble

C. Maarten Schmidt

D. Jocelyn Bell

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Correct Answer: Option C

Explanation:
Maarten Schmidt identified the first quasar.

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