Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockHard2 minPYQ_2018
ChemistryHardsingle choice

Match the metal ions given in Column 'I' with the spin magnetic moments of the ions given in Column 'II'.

Column IColumn II
a. Co3+ i. 8 B.M.
b. Cr3+ii. 35 B.M.
c. Fe3+iii. 3 B.M.
d. Ni2+iv. 24 B.M.
 v. 15B.M

NEET 2018

Options:

Answer:
D
Solution:

Magnetic moment μ=nn+2 B.M.

(i) Co3+→1s22s22p63s23p64s03d6



n=4

μ= 44+2=24 B.M.

(ii) Cr+3→1s22s22p63s23p64s03d3



n=3

μ= 33+2= 15 B.M.

(iii) Fe3+→1s22s22p63s23p64s03d5



n=5

μ= 55+2= 35 B.M.

(iv) Ni+2→1s22s22p63s23p64s03d8



n=2

μ= 22+2= 8 B.M.

Stream:NEETSubject:ChemistryTopic:Complete d-blockSubtopic:d-block
⏱ 2mℹ️ Source: PYQ_2018

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