1
WB JEE 2019
MCQ (Single Correct Answer)
+2
-0.67
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A copper coin was electroplated with Zn and then heated at high temperature until there is a change in colour. What will be the resulting colour?
A
white
B
black
C
silver
D
golden
WB JEE Subjects
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12