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

Which element is required for combustion?
A. Nitrogen
B. Oxygen
C. Carbon dioxide
D. Argon
Answer: Option B
Solution (By JKSSB Mock Tests)
Oxygen is a key reactant in combustion reactions.

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Practice More Science and Technology Questions

Question #1
India's first successful Mars mission was launched in:
A. 2013
B. 2019
C. 2023
D. 2008

Correct Answer: Option A


Explanation:
Mangalyaan was launched on 5 November 2013.

Question #2
The Mangalyaan mission was launched using:
A. Falcon
B. PSLV
C. Ariane
D. GSLV

Correct Answer: Option B


Explanation:
PSLV-C25 launched the Mars Orbiter Mission.

Question #3
The Turing Test is related to:
A. Nanotech
B. AI capability
C. Space travel
D. Genetic engineering

Correct Answer: Option B


Explanation:
It evaluates a machine's ability to exhibit intelligent behavior.