| 1 |
The strength of binding energy of transition elements depends upon |
- A. number of electron pairs
- B. number of unpaired electron pairs
- C. number of neutrons
- D. number of protons
|
| 2 |
Chlomyl chloride test is used for the confirmation of |
- A. Cl-
- B. CO3<sup>-2</sup>
- C. NO3-
- D. Cu2+
|
| 3 |
d -block elements which show anomalous configuration in first series are |
- A. Cr and Ni
- B. Cr and Cu
- C. Cu and CO
- D. Fe and Ni
|
| 4 |
Which one of the following elements has no variable valency. |
- A. Zinc
- B. Iron
- C. cobalt
- D. Manganese
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| 5 |
The total number of translation elements is |
|
| 6 |
The aqueous solution of which substances is green in colour |
- A. K2CrO4
- B. K2CrO7
- C. KMnO4
- D. K2MnO4
|
| 7 |
The variation pattern in ionic radii of first transition series shows |
- A. A regular increase
- B. A regulars decrease
- C. No regular pattern
- D. A regular decrease and than alight increase
|
| 8 |
Geometrical shape of [CO(NH3)6Cl3 |
- A. linear
- B. square planar
- C. Octahedral
- D. Trigonal hypyramid
|
| 9 |
The chemical composition of pyrolusite is. |
- A. KMnO4
- B. K2MnO4
- C. MnO2
- D. MnO
|
| 10 |
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
|