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BUET admission questions 2021-22 (Bangladesh University of Engineering & Technology)

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  1. 1.নিম্নের কোন বিক্রিয়াটি সঠিক নয়?

    1. A.H2SO4+HCl⇌H3SO4++Cl−H_2SO_4 + HCl \rightleftharpoons H_3SO_4^+ + Cl^-
    2. B.HSO4−+HNO2⇌H2NO2++SO42−HSO_4^- + HNO_2 \rightleftharpoons H_2NO_2^+ + SO_4^{2-}
    3. C.HCOOH+HCN⇌HCOOH2++CN−HCOOH + HCN \rightleftharpoons HCOOH_2^+ + CN^-
    4. D.HClO4+H2SO4⇌ClO4−+H3SO4+HClO_4 + H_2SO_4 \rightleftharpoons ClO_4^- + H_3SO_4^+
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