MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The compound tetraamminecopper(II) sulphate, or [Cu(NH3)4]SO4.5H2O, a double salt. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following is a complex salt? |
| A. | Potassium aluminium sulphate |
| B. | Ammonium iron(ll) sulphate |
| C. | Carnallite |
| D. | Potassium ferrocyanide |
| Answer» E. | |
| 3. |
[Fe(CN)6]4- is an example of a _______ |
| A. | Coordination compound |
| B. | Complex ion |
| C. | Double salt |
| D. | Complex salt |
| Answer» C. Double salt | |
| 4. |
What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3? |
| A. | 0 |
| B. | +2 |
| C. | +3 |
| D. | +4 |
| Answer» C. +3 | |
| 5. |
Predict the secondary valence of Pt within the complex ion from the equation shown below. |
| A. | 1 |
| B. | 3 |
| C. | 6 |
| D. | 9 |
| Answer» D. 9 | |
| 6. |
What is the sum of the oxidation number of cobalt in [Co(H2O)(CN)(en)2]2+and [CoBr2(en)2]+? |
| A. | 3 |
| B. | +4 |
| C. | +5 |
| D. | +6 |
| Answer» E. | |
| 7. |
If Pt in PtCl4.2HCl has a secondary valence of 6, how many mols of AgCl will 1 mol of the compound precipitate with excess AgNO3? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» B. 1 | |
| 8. |
Given that 1 mol of NiCl2.6H2O with excess AgNO3 precipitates 2 mols of AgCl, what is the secondary valence of Ni? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6 |
| Answer» E. | |
| 9. |
Werner postulated that octahedral, tetrahedral and square planar geometrical shapes are more common in coordination compounds of ________ |
| A. | alkali metals |
| B. | lanthanides |
| C. | actinides |
| D. | transition metals |
| Answer» E. | |
| 10. |
Werner proposed that the primary valences are ionizable and are satisfied only by positive ions. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Which is the counter ion in [Pd(NH3)4]2+2Cl–? |
| A. | Pd2+ |
| B. | [Pd(NH3)4]2+ |
| C. | Cl– |
| D. | It does not have a counter ion |
| Answer» D. It does not have a counter ion | |
| 12. |
If the secondary valence in CoCl3.4NH3 is six, the solution conductivity in silver nitrate corresponds to ________ electrolyte. |
| A. | 1:1 |
| B. | 1:2 |
| C. | 1:3 |
| D. | 1:4 |
| Answer» B. 1:2 | |
| 13. |
What is the colour of the compound CoCl3.5NH3? |
| A. | Yellow |
| B. | Purple |
| C. | Green |
| D. | Violet |
| Answer» C. Green | |
| 14. |
What was the term proposed by Werner for the number of groups bound directly to the metal ion in a coordination complex? |
| A. | Primary valence |
| B. | Secondary valence |
| C. | Oxidation number |
| D. | Polyhedra |
| Answer» C. Oxidation number | |