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संक्षारण के विषय में निम्न में से कौन - सा कथन असत्य है ?

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संक्षारण के विषय में निम्न में से कौन - सा कथन असत्य है ?
A. धातुए नष्ट होने लगती है ।
B. संक्षारण के कारण Ag का रंग कला हो जाता है ।
C. कॉपर पर हरे रंग की परत चढ़ जाती है ।
D. संक्षारण धातुओं के लिए हानिकारक नहीं है ।
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Correct Answer - D
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