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Question
নিচের কোনটি উভয়ধর্মী ক্ষারক?
N
a
2
O
CuO
ZnO
MgO
ANSWER : 3
Descrption
<p>জিংক অক্সাইড একই সঙ্গে অ্যাসিড ও ক্ষারের সঙ্গে বিক্রিয়া করতে পারে। তাই একে উভধর্মী বলা হয়।</p><p>অ্যাসিড এর সাথে:</p><p>ZnO + 2HCl ---> ZnCl2 + H2O</p><p>ক্ষারের সাথে:</p><p>ZnO + NaOH ---> Na2ZnO2 + H2</p>
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