North Maharashtra University 2009 B.Sc Chemistry ‘D’ block element - Question Paper

S.Y.B.Sc. CH-221( Inorganic Chemistry)

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2 MARKS

1) What is mean by d blocks element?
2) What is mean by Transition element?
3) State the position of d block in periodic table.
4) Write down the general electronic configuration of d block element.
5) Write down the outer electronic configuration first series.
6) Write down the outer electronic configuration second series.
7) Write down the outer electronic configuration third series.
8) What do you mean by screening effect?
9) describe & discuss metallic character in d block element
10) describe & discuss densities in d block element
11) describe & discuss melting point & boiling point in d block element
12) describe & discuss reactivity in d block element
13) describe & discuss catalytic properties in d block element
14) describe & discuss oxidation state in d block element
15) describe & discuss standard electrode potential in d block element
16) describe & discuss reducing property in d block element
17) describe & discuss colour property in d block element
18) describe & discuss magnetic property in d block element
19) describe & discuss tendency to form complexes in d block element
20) describe & discuss atomic & ionic radii in d block element
21) describe & discuss ionization energy in d block element
22) compute the magnetic moment of Cu2+ in CuSO4 (At No. of Cu = 29)
23) compute the magnetic moment of Fe2+ in FeSO4 (At No. of Fe = 26)
24) Why the second & third I.E. are too high than first I.E. in d block element?

3 MARKS
1. discuss Most of transition metals are paramagnetic.
2. discuss All transition metals exhibit variable valency
3. discuss Iron, Cobalt & Nickel are ferromagnetic
4. discuss variable oxidation state in d block element
5. discuss magnetic property of d block element
6. discuss Why standard electrode potent ional of transition element is higher
than standard hydrogen electrode
7. Why Zn, Cd, Hg are excluded from transition element
8. what is mean by d-d transition
9. State & discuss Para magnetism
10. State & discuss Diamagnetism
11. State & discuss Ferromagnetism
12. State & discuss anti-ferromagnetism

4 MARKS
1. Why Zn, Cd, Hg are excluded from transition element
2. The element Cu Ag& Au are not called as transition element but there ions
Cu2+ Ag2+ & Au3+ are consider as transition ions Why?
3. the element Cr & Cu show electronic configuration 4S1 3d5 &4S1
3d10insted of 4S2 3d4 & 4S2 3d9 respectively discuss
4. Why do the energies (Ionization energy) in provided series increases very
slowly on moving along the period
5. “The electrode potential of transition metals are generally higher than that
of hydrogen, still these metals do not displace from acid solution” How
would you discuss their normality?
6. Zr & Hf are chemical twins. discuss
7. Most of the transition metals are colored. discuss
8. Write the note on subsequent properties of d block.
a) Metallic character b) densities
9. write the note on subsequent properties of d block
a) M.P. &B.P b)reactivity
10. write the note on subsequent properties of d block
a) Catalytic properties b) reducing properties
11. write the note on subsequent properties of d block
a) atomic &ionic radii b) I.E.
12. write the note on subsequent properties of d block
a) Colour b) Oxidation state
13. discuss the paramagnetic nature of d block element
14. Which d block element show Ferromagnetism & Why .Explain
15. How the atomic & ionic radii affected by screening effect

6 MARKS
1. elaborate d block elements? provide their electronic configuration. How
they are sub divided in the different series?
2. What is mean by d block elements? How they are differ from s & p
block element. explain the general characteristics.
3. “Compounds of s & p block element are generally colorless (i.e. white)
but those of transition metals are generally colored” How would you
discuss their behavior.
4. provide the electronic configuration of d block element.
5. discuss in brief the subsequent properties of d block element
a) Metallic character b) densities
c) M.P. &B.P
6.Explain in brief the subsequent properties of d block element
a) Reactivity
b) Catalytic properties c) reducing properties
7. discuss in brief the subsequent properties of d block element
a) Atomic & ionic radii b) I.E.
c) Tendency to form complex
8. discuss in brief the subsequent properties of d block element
a) Metallic character
b) Atomic &ionic radii c) I.E.
9. S & P block element are called as re-presentative element while d
block elements are called as transition elements. discuss
10. Most of the transition metals are paramagnetic while Fe, Co, Ni are
ferromagnetic. explain

Earning:   Approval pending.