| 1 |
Co-ordination number of Cu in |
- A. Zero
- B. Two
- C. Four
- D. Six
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| 2 |
Which one of the following complexes is chelate. |
- A. Potassium hexacyanoferrate (II)
- B. Diammine silver (I) Chloride
- C. Tetracarbonylnikel (0)
- D. Sodium dioxalatoplatinate (II)
|
| 3 |
The total number of translation elements is |
|
| 4 |
The aqueous solution of which substances is green in colour |
- A. K2CrO4
- B. K2CrO7
- C. KMnO4
- D. K2MnO4
|
| 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%
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| 6 |
Stainless steel is |
- A. Compound
- B. An element
- C. Mixture
- D. 100% pure iron
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| 7 |
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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| 8 |
f-block elements are also called |
- A. non typical transition elements
- B. outer transition elements
- C. normal transition elements
- D. inner transition elements
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| 9 |
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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| 10 |
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
|