| 1 |
Which furnace is used to prepared steel |
- A. Blast furnace
- B. Pudding furnace
- C. Bessemer converter
- D. Pyrite furnace
|
| 2 |
The substance which is added to remove impurities is known as |
- A. Slag
- B. Flux
- C. Ore
- D. Gangue
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| 3 |
<div>Which of the following is non-typical transition metal</div> |
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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 |
f-block elements are also called |
- A. non typical transition elements
- B. outer transition elements
- C. normal transition elements
- D. inner transition elements
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| 6 |
The colour of transition metal complexes is due to |
- A. d-d transition of electrons
- B. Paramagnetic nature of transition elements
- C. Ionization
- D. Loss of s -electrons
|
| 7 |
To prevent corrosion, Iron pipes carrying drinking water are covered with zinc by |
- A. alley formation
- B. Electroplating
- C. Galvanizing
- D. Soldering
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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 |
Which element shows highest oxidation state among these |
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| 10 |
The aqueous solution of which substances is green in colour |
- A. K2CrO4
- B. K2CrO7
- C. KMnO4
- D. K2MnO4
|