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(C2H5)2OH(1)+H2SO4(1)=C2H5-OSO3H(1)+H2(g)
C6H5-CN+2H2OHCIC6H5-COOH+NH3+CO2
(CH3CO)2O(1)+NH3(g)CH3CO-NH2(s)+CH3COOH(1)
উপরের সবগুলো বিক্রিয়াই সঠিক।
ANS : 1
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