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 trends in ionisation enthalpies of d-block elements.
In 3d series, if nuclear charge increases, the shielding effects will ______.
Transition elements have more tendency to form interstitial compounds because _______.
The catalyst used for decomposition of KClO3 is _______.
Write formula to calculate magnetic moment.
Calculate magnetic moment of thorium (Z=90). Is this element diamagnetic or paramagnetic?
What are interstitial compounds?
What is a ferrous alloy?
Write any two uses of alloy.
Which of the following elements belongs to first inner transition series?
The CORRECT order of decreasing ionic radius is:
Nichrome is used specifically for making ____________.
How many among the following are ferrous alloys?
Nichrome, chromium steel, bronze, brass, stainless steel, Cupra-nickel.
Which among the following substances is used as a catalyst for thermal decomposition of potassium chlorate?
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)
What is the melting point of zinc?
Salts of Ti4+ are colourless. Give reason.
The spin only magnetic moment of Mn2+ ion is ______.
Give the classification of alloys with examples.
What two uses of the alloys.
Which element from the following does not exhibit a magnetic moment in the +1 state?
