+91-8076753736[email protected]
logo
logo
-->

Chemical Bonding And Molecular Structure

Question
CBSEENCH11008248
Wired Faculty App

Magnetic moment 2.83 BM is given by which of the following ions?

(At. no.: Ti =22; Cr=24; Mn=25; Ni=28)

  • Ti3+

  • Ni2+

  • Cr3+

  • Mn2+

Solution

B.

Ni2+

Magnetic moment is given by
straight mu space equals space square root of straight n left parenthesis straight n plus 2 right parenthesis end root Here comma space straight n equals space number space of space unpaired space electrons rightwards double arrow space 2.83 space equals space square root of straight n left parenthesis straight n plus 2 right parenthesis end root rightwards double arrow space left parenthesis 2.83 right parenthesis squared space equals space straight n left parenthesis straight n plus 2 right parenthesis 0 equals space 8.00 space plus straight n squared space plus 2 straight n straight n squared plus 2 straight n minus 8 space equals 0 left parenthesis straight n plus 4 right parenthesis left parenthesis straight n minus 2 right parenthesis space equals 0 space straight n equals 2 space space straight n equals negative 4 minus 4 space not space be space consider among space the space given space ions colon

Hence,Ni2+ possesses a magnetic moment of 2.83 B.M

Some More Questions From Chemical Bonding and Molecular Structure Chapter

What bond is present in MgCl2 molecules?

Write Lewis dot symbols for atoms of the elements Mg, Na, B, O, N, Br.

Draw the Lewis structure for the ionic compound by aluminium and fluorine.

Two elements A and B have the electronic configuration as:
A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.

What type of bonding would you expect between:
(i) a metal and a non-metal
(ii) a non-metal and another non-metal?

Give reasons in one or two sentences for the observation that in their compounds non-metals form anions and not cations.

Out of Na and K, which will form a more stable ionic bond?

Which will have a greater lattice enthalpy: NaCl or MgO?

Is  a covalent molecule always formed between two similar atoms?

Why sodium chloride is a solid whereas carbon tetrachloride is a liquid?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation