| 1 |
Which element shows highest oxidation state among these |
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| 2 |
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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| 3 |
Element of which group are called non typical transition elements. |
- A. IB
- B. II B
- C. II A
- D. VII B
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| 4 |
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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| 5 |
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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| 6 |
Which of the following is a typical transition metal |
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| 7 |
Typical transition element is |
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| 8 |
The chemical composition of pyrolusite is. |
- A. KMnO4
- B. K2MnO4
- C. MnO2
- D. MnO
|
| 9 |
Which is not an ore of iron |
- A. haematite
- B. Magnetite
- C. limonite
- D. Cassiterite
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| 10 |
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
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