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Q81) The correct ground state electronic configuration of chromium atom ( Z = 24) is ..[ IIT 1989]




SOLUTION


Answer: (d)


Q82) Zinc does not show variable valency like d-block elements because .. [ MP PMT 1989]




SOLUTION


Answer: (d)


Q83) Which of the following statement is correct? [ PM PMT 1988]



SOLUTION


Answer:(c)



Q84) The metal commonly present in brass and german silver is [ EAMCET 1988]



SOLUTION

Brass contains Cu and Zn while German silver contains Cu, Zn, Ni
Answer: (b)


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