Which element is required for combustion? MCQ with Answer and Explanation

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Which element is required for combustion?

A. Nitrogen

B. Argon

C. Oxygen

D. Carbon dioxide

Answer: Option C

Solution (By JKSSB Mock Tests)

Oxygen is a key reactant in combustion reactions.

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What is the full form of CDMA in mobile technology?

A. Code Division Mobile Access

B. Common Division Multiple Access

C. Central Division Multiple Access

D. Code Division Multiple Access

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Correct Answer: Option D

Explanation:
CDMA is used in mobile communication.

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Question #2

What is 'Augmented Reality' (AR)?

A. Overlapping digital content onto the real world

B. A method of internet security

C. A complete 3D simulation

D. A way to print 3D materials

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Correct Answer: Option A

Explanation:
AR overlays digital information, such as images or text, onto the user's real-world view.

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Question #3

Which mission of ISRO is also called 'Mission to Venus'?

A. Mangalyaan-2

B. Chandrayaan-3

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D. Shukrayaan-1

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Correct Answer: Option D

Explanation:
Shukrayaan-1 is planned for Venus exploration.

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