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The transition elements have...

The transition elements have

A

partly filled d - orbitals and completely filled higher s - orbitals

B

completely filled d - orbitals and partly filled higher s - orbitals

C

completely filled d - orbitals and completely filled s - orbitals

D

All of these

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d
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Wxplain the following giving suitable reson. (a). Transitin metals of 3d-series doe not react readily with dilute acids to liberate hydrogen although they have high negative reduction potential values. Explain. (b). The atomic radii of the elements in a transition series do not vary much while they do vary in the case of s and p-block elements. Explain. (c). The second and third members in each group of the transition elements group of the transition elements have similar atomic radii. Explain.

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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 24-Paper 1 (Physics and Chemistry)
  1. Benzoic acid contains

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  2. Which of the following is most basic ?

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  3. On heating with conc. HNO3, proteins give yellow colour. This test is ...

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  4. The unit of electrochemical equivalent is

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  5. CH(3)COOH overset(Ca(OH)(2))toA overset(Ca(OOCH)(2))underset(Delta)toB...

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  6. Compound B is

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  7. Phenol and carboxylic acid can be distinguished by

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  8. When calcium acetate and calcium formate together is subjected to dry ...

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  9. Benzaldehyde can be obtained by the hydrolysis of

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  10. The transition elements have

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  11. 8.2 L of an ideal weight 9.0 g at 300 K and 1 atm. pressure. The molec...

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  12. For the reaction , H(2)(g) + Cl(2) (g) to 2HCI(g) The experimental dat...

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  13. Secondary butyl chloride will undergo alkaline hydrolysis in the polar...

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  14. The standard cell potential for the cell Zn|Zn^(2+) (1 M)|| Cu^(2+) (1...

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  15. The decreasing acidic strength of a few of the acids HCOOH, CH(3)COOH...

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  16. In a reaction , ""(3)^(7)Li + Z to ""(4)^(7)Be + ""(0)^(1)n , the bom...

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  17. If the dissociation constants of two substances are K(1) " and " K(2) ...

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  18. Tooth brush bristles are made up of

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  19. The heat of combustion of ethane , ethylene and hydrogen are 372.79 kc...

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  20. HCHO overset("Reduction") to Aoverset (P and l(2))to Boverset(KCN)to C...

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