Civil Services WBCS (Executive) Prelims + Mains Mock Tests 2025 General Science Chemistry States of Matter

'LPG '- তে কোন উপাদান সবচেয়ে বেশি পরিমানে থাকে ?

1
মিথেন 
2
ইথেন 
3
প্রপেন 
4
বিউটেন 
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