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In the context of Green Propulsion, which of the following statement(s) is/are true regarding the advantage(s) of using Hydroxylammonium Nitrate (HAN)-based monopropellants over traditional Hydrazine? 1. HAN-based fuels have a higher density and higher specific impulse, offering better performance with lower toxicity. 2. HAN-based fuels do not require an ignition source as they react spontaneously with the vacuum of space. Choose the correct option from the following.
Correct Answer: (a)
Official keyThis question appeared in the GPSC Prelims 2026 examination (GS). It is Question 129 out of 200 questions in this paper.
This question was part of the GPSC Prelims 2026 (GS). The GPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all GPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.