Advertisements
Advertisements
प्रश्न
The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of Cr3+ ion is ______.
विकल्प
2.87 B.M.
3.87 B.M.
3.47 B.M.
3.57 B.M.
Advertisements
उत्तर
The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of Cr3+ ion is 3.87 B.M..
Explanation:
Cr3+ → [Ar]3d3 4s0, it has 3 unpaired electrons.
`mu = sqrt(n(n + 2))`
`mu = sqrt(3(3 + 2))`
`mu = sqrt(3(5))`
`mu = sqrt(15)`
μ = 3.87 B.M.
APPEARS IN
संबंधित प्रश्न
How would you account for the following?
Transition metals exhibit variable oxidation states.
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Write the element which shows maximum number of oxidation states. Give reason.
Explain why Cu+ ion is not stable in aqueous solutions?
In what way is the electronic configuration of the transition elements different from that of the non-transition elements?
How would you account for the following:
Of the d4 species, Cr2+ is strongly reducing while manganese (III) is strongly oxidising.
What are inner transition elements?
Complete and balance the following chemical equations
`Fe^(2+) + MnO_4^(-) + H^+ ->`
Explain why Zn2+ salts are white whereas Cu2+ salts are coloured.
Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following is not the characteristic property of interstitial compounds?
Which of the following will not act as oxidising agents?
(i) \[\ce{CrO3}\]
(ii) \[\ce{MoO3}\]
(iii) \[\ce{WO3}\]
(iv) \[\ce{CrO^{2-}4}\]
Why does copper not replace hydrogen from acids?
Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine. Why?
Answer the following question:
Which element of the first transition series has highest third ionisation enthalpy?
Which of the following statements is not correct?
Which of the following maxm magnetic moment?
Give reasons for the following statement:
Transition metals and most of their compounds show paramagnetic behaviour.
The number of terminal oxygen atoms present in the product B obtained from the following reactions is:
\[\ce{FeCr2O4 + Na2CO3 + O2 -> A + Fe2O3 + CO2}\]
\[\ce{A + H^+ -> B + H2O + Na^+}\]
Consider the following standard electrode potential values:
\[\ce{Sn^{2+}_{ (aq)} + 2e^- -> Sn_{(s)}}\]; E0 = −0.14 V
\[\ce{Fe^{3+}_{ (aq)} + e^- -> Fe^{2+}_{ (aq)}}\]; E0 = +0.77 V
What is the cell reaction and potential for the spontaneous reaction that occurs?
Why are interstitial compounds well known for transition metals?
