- 1(current)
Q. No.The sum of x + y in [Co(NH3)5Cl]Cl2, where x denotes the primary valency and y represents the secondary valency of the central metal ion, is:
1. 6
2. 9
3. 5
4. 3
1. 6
2. 9
3. 5
4. 3
Subtopic: Werner’s Theory |
83%
Level 1: 80%+
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The complex \(\text{CrCl}_3 \cdot x \text{NH}_3\) can exist as a coordination compound. A 0.1 molal aqueous solution of this complex shows a depression in the freezing point of 0.558°C. Assuming 100% ionization of this complex and coordination number of Cr is 6, what is the formula of the complex?
(Given \(K_f = 1.86 \, \text{K kg mol}^{-1}\))
| 1. | \(\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3\) | 2. | \(\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl} \) |
| 3. | \(\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl}_2 \) | 4. | \(\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\) |
Subtopic: Werner’s Theory |
58%
Level 3: 35%-60%
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What are the secondary valency and the number of hydrogen-bonded water molecules in CuSO₄·5H₂O, respectively?
| 1. | 6 and 4 | 2. | 5 and 1 |
| 3. | 6 and 5 | 4. | 4 and 1 |
Subtopic: Werner’s Theory |
Level 3: 35%-60%
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- 1(current)
Q. No.
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