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| 1. |
Differentiate between metal and non metals on the basis physical and chemical properties |
| Answer» <html><body><p><strong><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a>:</strong></p><p><strong>Physical</strong><strong> </strong><strong>properties</strong><strong> </strong></p><p><strong><em><u>Metals</u></em></strong></p><p>Shiny (lustrous) in nature</p><p>Metal is a good conductor of electricity and heat</p><p>Density and melting point is high</p><p>Mouldable (<a href="https://interviewquestions.tuteehub.com/tag/malleable-553275" style="font-weight:bold;" target="_blank" title="Click to know more about MALLEABLE">MALLEABLE</a>)</p><p>Ductile</p><p>At room temperature, it is in solid form except for mercury</p><p>Opaque</p><p><strong><em><u>Non</u></em></strong><strong><em><u> </u></em></strong><strong><em><u>Metals</u></em></strong></p><p>Poor <a href="https://interviewquestions.tuteehub.com/tag/conductors-14781" style="font-weight:bold;" target="_blank" title="Click to know more about CONDUCTORS">CONDUCTORS</a> of electricity and heat</p><p>Non-Ductile metals</p><p>Brittle solids</p><p>Maybe solids, liquids or gases at room temperature</p><p>These are not sonorous</p><p>Transparent</p><p><strong>Chemical</strong><strong> </strong><strong>properties</strong></p><p><strong><em><u>Metals</u></em></strong></p><p>Easily corrodible</p><p>Can lose electrons</p><p>Form basic oxides</p><p>Have low electronegativities</p><p>Good reducing agents</p><p><strong><em><u>Non</u></em></strong><strong><em><u> </u></em></strong><strong><em><u>metals</u></em></strong></p><p>The number of electrons in the outer shell is generally 4-8</p><p>Easily gain or lose valence electrons</p><p>Form acidic oxides <a href="https://interviewquestions.tuteehub.com/tag/whenever-2331622" style="font-weight:bold;" target="_blank" title="Click to know more about WHENEVER">WHENEVER</a> they come in contact with oxygen</p><p>High electronegative elements</p><p>Great <a href="https://interviewquestions.tuteehub.com/tag/oxidizing-2906555" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDIZING">OXIDIZING</a> agents</p><p> <strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong>Keep</strong><strong> </strong><strong>smiling</strong><strong>☺</strong><strong>☺</strong><strong>☺</strong></p><p></p><p></p></body></html> | |