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Important Discoveries MCQs for Competitive Exams

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Important Discoveries MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

21 MCQs Page 1

Topic Notes: Important Discoveries

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Important Discoveries MCQs in General Science-Everyday Science are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

Attempt the questions page by page, check the correct answers, read the explanations where available, and compare your weak areas with past papers and mock test performance. Consistent MCQ practice improves speed, confidence, and retention for objective exam sections.

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1
In which year did James Watson and Francis Crick publish their landmark model describing the double-helix structure of DNA?
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2
Following the atomic bombing of Hiroshima on August 6, 1945, on what date was the second atomic bomb dropped on Nagasaki?
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3
Which nation conducted underground nuclear testing shortly after the confirmation of the Nuclear Non-Proliferation Treaty (NPT) extension?
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4
On what date did North Korea conduct its first successful nuclear weapon test?
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5
What was the specific codename assigned to the atomic bomb detonated over Hiroshima on August 6, 1945?
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6
Which nation conducted a nuclear weapons test off the northwest coast of Australia in 1952?
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7
On August 29, 1949, which nation successfully conducted its first atomic bomb test?
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8
On which dates were the first atomic bombs deployed over Hiroshima and Nagasaki?
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9
Which nation conducted its first nuclear weapon test in the Sahara Desert on February 13, 1960?
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10
On what date did France carry out its sixth and final nuclear test in the 1995-1996 series?
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