| 1 |
The substance which is added to remove impurities is known as |
- A. Slag
- B. Flux
- C. Ore
- D. Gangue
|
| 2 |
Which of the following is a typical transition metal |
|
| 3 |
Chlomyl chloride test is used for the confirmation of |
- A. Cl-
- B. CO3<sup>-2</sup>
- C. NO3-
- D. Cu2+
|
| 4 |
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
|
| 5 |
Mild steel contains carbon percentage |
- A. 0.1 - 0.2%
- B. 0.3 - 0.7%
- C. 0.7 - 1.5%
- D. 1.6 - 2.0%
|
| 6 |
The total number of transition element is |
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| 7 |
The type of hybridization in PCl3 is. |
- A. dsp2
- B. sp3
- C. dsp3
- D. d2sp3
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| 8 |
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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| 9 |
The transition elements which are present in 4th period of periodic table have atomic number. |
- A. <div>22 to 30</div>
- B. 21 to 30
- C. 21 to 29
- D. 21 to 31
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| 10 |
Which element shows highest oxidation state among these |
|