| 1 |
The aqueous solution of which substances is green in colour |
- A. K2CrO4
- B. K2CrO7
- C. KMnO4
- D. K2MnO4
|
| 2 |
Which of the following is a typical transition metal. |
|
| 3 |
The total number of transition element is |
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| 4 |
<div>Which of the following is non-typical transition metal</div> |
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| 5 |
Which furnace is used to prepared steel |
- A. Blast furnace
- B. Pudding furnace
- C. Bessemer converter
- D. Pyrite furnace
|
| 6 |
Which form interstitial compounds. |
- A. Fe
- B. Ni
- C. CO
- D. All of those
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| 7 |
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)
|
| 8 |
Which is not coloured ion |
- A. SO4<sup>-2</sup>
- B. MnO4-3
- C. CrO4<sup>-2</sup>
- D. Cr2O7<sup>-2</sup>
|
| 9 |
Colour of K2Cr2O7 is |
- A. Red
- B. Orange
- C. Green
- D. Yellow
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| 10 |
The chemical composition of pyrolusite is. |
- A. KMnO4
- B. K2MnO4
- C. MnO2
- D. MnO
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