| 1 |
Co-ordination number of Cu in |
- A. Zero
- B. Two
- C. Four
- D. Six
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| 2 |
Which of the following is non-typical transition element |
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| 3 |
The strength of binding energy of transition elements depend upon |
- A. number of electron pairs
- B. number of unpaired electron pairs
- C. number of neutrons
- D. number of protons
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| 4 |
The total number of transition element is |
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| 5 |
The substance which is added to remove impurities is known as |
- A. Slag
- B. Flux
- C. Ore
- D. Gangue
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| 6 |
Which furnace is used to prepared steel |
- A. Blast furnace
- B. Pudding furnace
- C. Bessemer converter
- D. Pyrite furnace
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| 7 |
Which of the following is a non typical transition element. |
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| 8 |
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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| 9 |
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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| 10 |
Colour of K2Cr2O7 is |
- A. Red
- B. Orange
- C. Green
- D. Yellow
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