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$C H_{3} C H_{2} O H + H_{2} S O_{4} \overset{17 ° C}{\to}$ বিক্রিয়ার উৎপাদ কোনটি ?

C H_{2} C H_{2} S O_{2} H

C H_{2} C H_{2}

C H_{2} = C H_{2}

C H_{4}

ANS : 3

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