Q. No.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. \(\mathrm{{H}_2 {Po}<{H}_2 {Te}<{H}_2 {Se}<{H}_2 {~S}<{H}_2 {O}}\)
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. \(\mathrm{{H}_2 {Po}<{H}_2 {Te}<{H}_2 {Se}<{H}_2 {~S}<{H}_2 {O}}\)
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) |
Match the name of process given in Column-I with the name of compound given in Column-II and mark the correct option.
| Column-I | Column-II | ||
| (a) | Pure nitrogen | (i) | Chlorine |
| (b) | Haber process | (ii) | Sulphuric acid |
| (c) | Contact process | (iii) | Ammonia |
| (d) | Deacon's process | (iv) | Sodium azide or Barium azide |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (ii) | (iv) | (i) | (iii) |
| 4. | (iii) | (iv) | (ii) | (i) |
False statement regarding PCl5 is:
| 1. | PCl5 molecule is non-reactive. |
| 2. | Three equatorial P-Cl bonds make an angle of 120° with each other. |
| 3. | Two axial P-Cl bonds make an angle of 180° with each other. |
| 4. | Axial P-Cl bonds are longer than equatorial P-Cl bonds. |
1. H4P2O7
2. H3PO3
3. H3PO2
4. H3PO4
| 1. | H2S2O7 | 2. | H2SO3 |
| 3. | H2SO4 | 4. | H2S2O8 |
Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option.
Column I Column II
A. XeF6 1. Distorted octahedral
B. XeO3 2. Square planar
C. XeOF4 3. Pyramidal
D. XeF4 4. Square pyramidal
Codes
A B C D
(a) 1 2 4 3
(b) 4 3 1 2
(c) 4 1 2 3
(d) 1 3 4 2
A compound 'X' upon reaction with produces a colorless gas 'Y' with rotton fish smell. Gas 'Y' is absorbed in a solution of to give as one of the products. Predict the compound 'X'
1.
2.
3.
4.
Which one of the following reactions does not come under hydrolysis type reaction?
| 1. | \(\mathrm{S i C l_{4 \left( l \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow S i O_{2 \left( s \right)} + 4 H C l_{\left( a q \right)}}\) |
| 2. | \(\mathrm{L i_{3} N_{\left( s \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow N H_{3 \left( g \right)} + 3 L i O H_{\left( a q \right)}}\) |
| 3. | \(\mathrm{2 F_{2 \left( g \right)} + 2 H_{2} O_{\left( l \right)} \rightarrow 4 H F_{\left( a q \right)} + O_{2 \left( g \right)}}\) |
| 4. | \(\mathrm{P_{4} O_{10 \left( s \right)} + 6 H_{2} O_{\left( l \right)} \rightarrow 4 H_{3} P O_{4 \left( a q \right)}}\) |
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