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InterviewSolution
| 1. |
Assertion:Isotopes of an element can be separated by using a mass spectrometer. Reason: Separation of isotopes is possible because of difference in electronnumber of isotopes . |
| Answer» <html><body><p>If both assertion and reason are true and reason is the correct explanation of assertion .<br/>If both assertion and reason are true but reason is notthe correct explanation of assertion . <br/>If assertion is true but reason is false . <br/>If both assertion and reason are false </p>Solution :Number of electrons in isotopes of an element is same. If two atoms have the same number of protons but different number of neutrons , their atomic (proton) numbers are equal but not their mass (nucleon) numbers. In mass spectrograph, the deflecting electric and magnetic fields were <a href="https://interviewquestions.tuteehub.com/tag/arranged-2443099" style="font-weight:bold;" target="_blank" title="Click to know more about ARRANGED">ARRANGED</a> so that all particles of the same mass , irrespective of their speed , were brought to a line <a href="https://interviewquestions.tuteehub.com/tag/focus-25840" style="font-weight:bold;" target="_blank" title="Click to know more about FOCUS">FOCUS</a>. When <a href="https://interviewquestions.tuteehub.com/tag/ions-1051295" style="font-weight:bold;" target="_blank" title="Click to know more about IONS">IONS</a> of different mass were present , a series of lines, i.e., a mass spectrum , obtained on a photographic film. The relative intensities of the lines enabled an estimate to be made of the relative amounts of isotopes.</body></html> | |