The most suitable reagent for the following conversion is-
| 1. | Hg2+/ H+, H2O | 2. | Na/liquid NH3 |
| 3. | H2, Pd/C, quinoline | 4. | Zn/HCl |
Which of the following is the correct arrangement of 4d, 5p, 5f, and 6p orbitals in the order of decreasing energy?
| 1. | 5f > 6p > 4d > 5p | 2. | 5f > 6p > 5p > 4d |
| 3. | 6p > 5f > 5p > 4d | 4. | 6p > 5f > 4d > 5p |
Match the Xenon compounds in Column-I with their structure in Column-II and assign the correct code:
| Column-I | Column-II | ||
| (a) | XeF4 | (i) | Pyramidal |
| (b) | XeF6 | (ii) | Square planar |
| (c) | XeOF4 | (iii) | Distorted octahedral |
| (d) | XeO3 | (iv) | Square pyramidal |
Code:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (ii) | (iii) | (iv) | (i) |
| 4. | (ii) | (iii) | (i) | (iv) |
Which of the following processes shows a decrease in entropy?
1. \(2 \text H \left(g\right)\rightarrow\text H_{2} \left(g\right)\)
2. Evaporation of water
3. Expansion of a gas at a constant temperature
4. Sublimation of a solid to a gas
| 1. | 40 mol | 2. | 10 mol |
| 3. | 20 mol | 4. | 30 mol |
1. SiF4, BeH2
2. NF3,H2O
3. NF3,BF3
4. H2S, BF3
Disproportionation reactions are:
| (a) | |
| (b) | |
| (c) | |
| (d) |
| 1. | (a) and (d) only | 2. | (a) and (b) only |
| 3. | (a), (b) and (c) | 4. | (a), (c) and (d) |
The correct thermal stability order for \(\mathrm{{H}_2 {E}},\) \(\mathrm{{ E}= {O}, {S}, {Se}, {Te}} \text { and } \mathrm{Po}\) among the following is:
1. \(\mathrm{{H}_2 {Se}<{H}_2 {Te}<{H}_2 {Po}<{H}_2 {O}<{H}_2 S}\)
2. \(\mathrm{{H}_2 {~S}<{H}_2 {O}<{H}_2 {Se}<{H}_2 {Te}<{H}_2 {Po}}\)
3. \(\mathrm{{H}_2 {O}<{H}_2 {~S}<{H}_2 {Se}<{H}_2 {Te}<{H}_2 {PO}}\)
4. \(\mathrm{{H}_2 {Po}<{H}_2 {Te}<{H}_2 {Se}<{H}_2 {~S}<{H}_2 {O}}\)
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