लोहे की चादर को जंग से बचान� – McqOptions

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1.	लोहे की चादर को जंग से बचाने के लिए उस पर निम्नलिखित में से किस धातु की परत चढ़ाते हैं -
A.	सीसा
B.	क्रोमियम
C.	जस्ता
D.	निकेल
Answer» D. निकेल

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