| 1 |
In [Co(NH3)6]+3 the coordination number of cobalt is. |
- A. Zero
- B. Two
- C. Four
- D. Six
|
| 2 |
Which of the following is a typical transition metal |
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| 3 |
The substance which is added to remove impurities is known as |
- A. Slag
- B. Flux
- C. Ore
- D. Gangue
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| 4 |
Group VI B of transition elements contains. |
- A. Zn, Cd, Hg
- B. Fe, Ru,Os
- C. Cr, Mo, W
- D. Mn, Te, Re
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| 5 |
Which complex shows zero oxidation state of the transition metal. |
- A. [Fe(CO)5]
- B. K3[Fe(CN)6]
- C. K2[Fe(CN)6]
- D. [Cu(NH3)4]SO4
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| 6 |
The colour of transition metal complexes |
- A. d-d transitions of electrons
- B. paramagnetic nature of transition elements
- C. ionization
- D. loss of s-electron
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| 7 |
Which element shows highest oxidation state among these |
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| 8 |
In IUPAC system, the name of K4[Fe(CN)6] is |
- A. Potassium ferricynaide
- B. Potassium ferrocynide
- C. Potassium Hexacyanoferrate (II)
- D. Poatssium hexacaynoferrate (III)
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| 9 |
The variation pattern in ionic radii of first transition series shows |
- A. A regular increase
- B. A regulars decrease
- C. No regular pattern
- D. A regular decrease and than alight increase
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| 10 |
Co-ordination number of Pt in Pt Cl(NO<sub>2</sub>)(NH<sub>3</sub>)<sub>4</sub> |
|