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Give reason (one each) for the following...

Give reason (one each) for the following :
Transition metal are good catalytic agent

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Give reason (one each) for the following. a) Transition metals are good catalytic agents. b) Second ionisation Enthalpy of copper is very high. c) The spin only magnetic moment of Sc^(3+) is zero (Z = 21) .

Give reason (one each) for the following: (a) Transition metals are good catalytic agent (b) Second ionisation enthalpy of copper is very high. (c) The spin only magnetic moment of Sc^(3+) is zero (Z = 21).

Give reason (one each) for the following : Second ionisation enthalpy of copper is very high.

Give reason (one each) for the following : The spin only magnetic moment of Se^(3+) is zero (Z=21)

Assign reasons for each of the following: (i) Transition metals generally form coloured compounds. (ii) Manganese exhibits the highest oxidation state of +7 among the 3d-series of transition elements.

Give reasons for the following : (i) Metals are good conductors of electricity whereas non-metals are not. (ii) Ionic compounds have usually high melting and boiling points.

Which of the following transition metal oxide is not an insulator ?

Give reason for the following. Stability of colloids.

Which of the following non metal is good conductor of electricity .

OSWAAL PUBLICATION-Sample Paper 7-Exercise
  1. Describe the experimental procedure and give the calculations involved...

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  2. Give reason (one each) for the following: (a) Transition metals are ...

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  3. Give reason (one each) for the following : Transition metal are good...

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  4. Give reason (one each) for the following : Second ionisation enthalp...

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  5. Give reason (one each) for the following : The spin only magnetic mo...

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  6. Mention any two characteristics of bonding molecular orbitals.

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  7. Which of the following overlapping of atomic orbitals will not be allo...

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  8. Which of the following overlapping of atomic orbitals will not be allo...

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  9. Which of the following overlapping of atomic orbitals will not be allo...

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  10. On the basis of Valence bond theory account for the hybridization, sha...

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  11. The coordination number of Cs^+ in CsCl crystal is -------

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  12. Define the terms (a) Crystal lattice (space lattice), (b) Unit cell.

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  13. What is the contribution of a corner particle to a unit cell in a cubi...

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  14. On dissolving 2.34g of non-electrolyte solute in 40g of benzene, the b...

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  15. State Henry's law. Write its mathematical form.

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  16. Calculate the EMF of the cell for the reaction Mg((s))+2Ag((aq))^(+)...

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  17. What are fuel cells?

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  18. The rate constant of a particular reaction doubles when the temperatur...

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  19. b) Show that the half - life period of a first order reaction is indep...

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  20. With respect to sol what is : Dialysis

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