What is the use of Blockchain? MCQ with Answer and Explanation

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What is the use of Blockchain?

A. Image processing

B. Weather prediction

C. Cryptocurrency and secure records

D. Rocket fuel

Answer: Option C

Solution (By JKSSB Mock Tests)

Blockchain ensures transparency and security.

This question belongs to: Static General Knowledge Science and Technology

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Question #1

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India's first manned space mission is scheduled under:

A. Chandrayaan

B. Mangalyaan

C. Aditya

D. Gaganyaan

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Correct Answer: Option D

Explanation:
Gaganyaan is India's human spaceflight programme.

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Question #2

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Which of these is a greenhouse gas?

A. Nitrogen

B. Methane

C. Oxygen

D. Argon

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Correct Answer: Option B

Explanation:
Methane is a significant contributor to the greenhouse effect.

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Question #3

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What is the chemical symbol for Potassium?

A. Po

B. Pt

C. P

D. K

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Correct Answer: Option D

Explanation:
The symbol for potassium is K, from the medieval Latin 'kalium'.

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