| 1 |
In [Co(NH3)6]+3 the coordination number of cobalt is. |
- A. Zero
- B. Two
- C. Four
- D. Six
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| 2 |
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)
|
| 3 |
The conversion of potassium magnate to potassium permanganate by passing Cl2 Through aqueous solution of K2MnO4 is called. |
- A. Contact process
- B. Open hearth process
- C. Stadeler's process
- D. Thermite process
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| 4 |
The strength of binding energy of transition elements depends upon |
- A. number of electron pairs
- B. number of unpaired electron pairs
- C. number of neutrons
- D. number of protons
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| 5 |
The total number of transition element is |
|
| 6 |
Which is not coloured ion |
- A. SO4<sup>-2</sup>
- B. MnO4-3
- C. CrO4<sup>-2</sup>
- D. Cr2O7<sup>-2</sup>
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| 7 |
f - block elements are also called. |
- A. Non typical transition elements
- B. Outer transition elements
- C. Inner transition elements
- D. None of true
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| 8 |
Geometrical shape of [CO(NH3)6Cl3 |
- A. linear
- B. square planar
- C. Octahedral
- D. Trigonal hypyramid
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| 9 |
The percentage of carbon in different types of iron products is in the order of |
- A. cast iron > wrought iron > steel
- B. wrought iron > steel > cast iron
- C. cast iron > steel > wrought iron
- D. cast iron = steel > wrought iron
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| 10 |
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
|