Advertisements
Advertisements
प्रश्न
Explain why Mn2+ ion is more stable than Mn3+? (Given : Mn→ Z=25)
उत्तर
The electronic configuratioon of Mn+2 ion is [Ar]3d54s0
It has five unpaired electrons in its d-orbitals which is maximum value for a transition metal ion. While Mn+3 ion has electronic configuration [Ar] 3d4 4s0.
Mn+2 ions are more stable than Mn+3 ions.
APPEARS IN
संबंधित प्रश्न
Write balanced chemical equations for action of potassium permanganate on: Hydrogen
Pb(NO3)2 on heating gives a brown gas which undergoes dimerisation on cooling? Identify the gas
What is the covalence of nitrogen in N2O5?
How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.
Give the resonating structures of NO2 and N2O5.
Explain why NH3 is basic while BiH3 is only feebly basic.
Write balanced chemical equations for action of potassium permanganate on Warm conc. sulphuric acid
Account for the following :
Bond angle in NH+4NH4+ is higher than NH3.
Tendency to show –3 oxidation state decrease from Nitrogn (N) to Bismuth (Bi).
The statement true for \[\ce{N^-_3}\] is ____________.
Which of the following statements is not correct for nitrogen?
Among the 15th group elements, as we move from nitrogen to bismuth, the pentavalency becomes less pronounced and trivalency becomes more pronounced due to:
Pure nitrogen is prepared in the laboratory by heating a mixture of:
The bonds present in N2O5 are ____________.
In which one of the following oxides of nitrogen, one nitrogen atom is not directly linked to oxygen?
Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?
Which of the following can be used as anesthesia?
The laughing gas is ____________.
Which of the following elements can be involved in pπ – dπ bonding?
Assertion: \[\ce{HNO3}\] makes iron passive.
Reason: \[\ce{HNO3}\] forms a protective layer of ferric nitrate on the surface of iron.
On heating lead (II) nitrate gives a brown gas “A”. The gas “A” on cooling changes to colourless solid “B”. Solid “B” on heating with NO changes to a blue solid ‘C’. Identify ‘A’, ‘B’ and ‘C’ and also write reactions involved and draw the structures of ‘B’ and ‘C’.
HCl is added to following oxides. Which one would give H2O2
Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?
Heating white phosphorus with conc. NaOH solution gives mainly ______.
