Question
Explain the cyclic structure of glucose.
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A first order reaction takes 30 min for 50% completion, what would be time for its 90% completion.
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Match the property given in Column I with the element given in Column II.
| | Column I (Property) | | Column II (Element) |
| (i) | Lanthanoid which shows +4 oxidation state | (a) | Pm |
| (ii) | Lanthanoid which can show +2 oxidation state | (b) | Ce |
| (iii) | Radioactive lanthanoid | (c) | Lu |
| (iv) | Lanthanoid which has 4f7 electronic configuration in +3 oxidation state | (d) | Eu |
| (v) | Lanthanoid which has 4f14 electronic configuration in +3 oxidation state | (e) | Gd |
| | | (f) | Dy |
Match the coordination compounds given in Column I with the central metal atoms given in Column II and assign the correct code:
Code:
| | Column I (Coordination Compound) | | Column II (Central metal atom) |
| a. | Chlorophyll | 1. | Rhodium |
| b. | Blood pigment | 2. | Cobalt |
| c. | Wilkinson catalyst | 3. | Calcium |
| d. | Vitamin B12 | 4. | Iron |
| | | 5. | Magnesium |
- A (5), B (4), C (1), D (2).
- A (3), B (4), C (5), D (1).
- A (4), B (3), C (2), D (1).
- A (3), B (4), C (1), D (2).
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