ताँबा किससे शुद्ध होता है - – McqOptions

MCQOPTIONS

1.	ताँबा किससे शुद्ध होता है -
A.	तपाने से
B.	ऑक्सीकरण से
C.	विद्युत अपघटन से
D.	मंडन परिष्करण से
Answer» D. मंडन परिष्करण से

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