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Diya Acharya from Hiranandani International, mumbai

Subject :NSO Class : Class 8

When Cu is exposed to moist air for a long time, which of the following is formed?

ACu(OH)₂
BCuCO₃
CBoth (A) and (B)
DCu₂O

shouldnt it be b?

Ans 1:

Yashvardhan from Global knowledge public school, latur

sarthak mishra from Suraj School Sector-75 ,Gurugram, Gurugram