Advertisements
Advertisements
प्रश्न
Answer the following
Why salts of Sc3⊕, Ti4⊕, V5⊕ are colourless?
Advertisements
उत्तर
i. Condensed electronic configurations of Sc3+, Ti4+, V5+ are: Sc3+: [Ar] 3d0 ; Ti4+: [Ar] 3d0 ; V5+: [Ar] 3d0
ii. The ions Sc3+, Ti4+ and V5+ have completely empty d-orbitals i.e., no unpaired electrons are present. Thus, their salts are colourless, as d-d transitions are not possible.
APPEARS IN
संबंधित प्रश्न
Answer the following
Explain the trends in atomic radii of d block elements.
Which alloy is used in the Fischer-Tropsch process in the synthesis of gasoline?
Name the catalyst used in the hydrogenation of ethene to ethane.
Calculate magnetic moment of thorium (Z=90). Is this element diamagnetic or paramagnetic?
What is a ferrous alloy?
Write any two uses of alloy.
Which of the following elements is alloyed with copper to form bronze?
Select the CORRECT match.
The first element of 3d series is ____________.
The CORRECT order of decreasing ionic radius is:
Spin-only magnetic moment of Mn2+ ion is ____________.
The spin only magnetic moment of Mn3+ (Z = 25) in aqueous solution is ____________.
Nichrome is used specifically for making ____________.
Which of the following is not the mineral of iron?
Among the following, ____________ has the largest atomic radius.
____________ has the highest electronegativity next to fluorine amongst all the elements.
The following statement is CORRECT EXCEPT:
Which among the following pairs of elements in their respective oxidation states will have same value of effective magnetic moment?
(Atomic number: Sc = 21, Ti = 22, Cr = 24, Co = 27, Ni = 28, Zn = 30)
Identify the soft element from following.
What is the melting point of zinc?
Write the name of the alloy used in the Fischer Tropsch process in the synthesis of gasoline.
Calculate spin only magnetic moment of divalent cation of transition metal with atomic number 25.
What is the number of unpaired electrons of nickel observed in \[\ce{[Ni(CN)4]^{2-}}\]?
What two uses of the alloys.
The spin only magnetic moment of Cr3+ cation is ______.
