Question:কোনটি প্রশমন বিক্রিয়া? 

A `HCI + KOH rarr + KCI + H_2O` 
B `Zn+H_2SO_4 rarr ZnSO_4 + H_2` 
C `NH_3+HCI rarr NH_4CI` 
D `Zn_+S rarr ZnS` 

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A 

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Md. Sohel Arman

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