Q.
Diamagnetic substances areI. weakly repelled by magnetic field.II. weakly magnetized in a magnetic field in opposite direction.III. those which have no unpaired electron.IV. pairing of electrons cancels their magnetic moment.Which of the above statement(s) is incorrect?
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a
Only I
b
Only II
c
Only III
d
None of these
answer is D.
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Detailed Solution
Diamagnetic substances are weakly repelled by magnetic field. H2O, NaCl and C6H6 are some of diamagnetic substances. They are weakly magnetized in a magnetic field in opposite direction. These have no unpaired electrons. pairing of electrons cancels their magnetic moment and they lose their magnetic character.
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