| 1 |
<div>Which of the following is non-typical transition metal</div> |
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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)
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| 3 |
The percentage of carbon is 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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| 4 |
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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| 5 |
The aqueous solution of which substances is green in colour |
- A. K2CrO4
- B. K2CrO7
- C. KMnO4
- D. K2MnO4
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| 6 |
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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| 7 |
Which one of the following elements shows variable valency, can act as a catalyst and form coloured compounds. |
- A. Carbon
- B. Chlorine
- C. Sulpur
- D. Iron
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| 8 |
Which is not an ore of iron |
- A. haematite
- B. Magnetite
- C. limonite
- D. Cassiterite
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| 9 |
Which one of the following elements commonly exhibits oxidation states of +6 and +3 in aqueous solution. |
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| 10 |
The substance which is added to remove impurities is known as |
- A. Slag
- B. Flux
- C. Ore
- D. Gangue
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