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Articles of metal like gold and silver lose their lusture due to |
Answer» <html><body><p><strong>Answer:</strong></p><p>The metals lose their <a href="https://interviewquestions.tuteehub.com/tag/shine-1205406" style="font-weight:bold;" target="_blank" title="Click to know more about SHINE">SHINE</a> on brightness on keeping in <a href="https://interviewquestions.tuteehub.com/tag/air-852233" style="font-weight:bold;" target="_blank" title="Click to know more about AIR">AIR</a> for a long time <a href="https://interviewquestions.tuteehub.com/tag/due-433472" style="font-weight:bold;" target="_blank" title="Click to know more about DUE">DUE</a> to formation of a <a href="https://interviewquestions.tuteehub.com/tag/thin-707663" style="font-weight:bold;" target="_blank" title="Click to know more about THIN">THIN</a> layer of oxide, carbonate or sulphide on their surface by the slow action of various gases <a href="https://interviewquestions.tuteehub.com/tag/present-1163722" style="font-weight:bold;" target="_blank" title="Click to know more about PRESENT">PRESENT</a> in air.</p></body></html> | |