Q. No.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.
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) |
The acidity of diprotic acids in aqueous solution increases in the order:
1. H2S < H2Se < H2Te
2. H2Se < H2S < H2Te
3. H2Te < H2S < H2Se
4. H2Se < H2Te < H2S
The strong reducing behaviour of H3PO2 is due to:
1. Presence of one -OH group and two P-H bonds.
2. High electron gain enthalpy of phosphorus.
3. High oxidation state of phosphorus.
4. Presence of two -OH groups and one P-H bond.
| Column-I | Column-II | ||
| (A) | XX’ | (i) | T-shape |
| (B) | XX’3 | (ii) | Pentagonal bipyramidal |
| (C) | XX’5 | (iii) | Linear |
| (D) | XX’7 | (iv) | Square Pyramidal |
| (A) | (B) | (C) | (D) | |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (i) | (iv) | (iii) | (ii) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iii) | (iv) | (i) | (ii) |
The gas that is used in the gas thermometer is:
| 1. | \(\mathrm{He} \) | 2. | \(\mathrm{O}_2 \) |
| 3. | \(\mathrm{Xe} \) | 4. | \(\mathrm{Ne}\) |
Which of the following liquids has the ability to climb the glass vessel's wall?
1. Alcohol
2. Liquid He
3. Liquid
4. Water
The molecular shapes of SF4, CF4 and XeF4 are:
| 1. | The same with 2, 0 and 1 lone pairs of electrons on the central atoms, respectively |
| 2. | The same with 1, 1 and 1 lone pairs of electrons on the central atoms, respectively |
| 3. | Different with 0, 1 and 2 lone pairs of electrons on the central atoms, respectively |
| 4. | Different with 1, 0 and 2 lone pairs of electrons on the central atoms, respectively |
What order does the stability of interhalogen compounds follow?
1. IF3 > BrF3 > CIF3
2. BrF3 > IF3 > ClF3
3. ClF3 > BrF3 > IF3
4. ClF3 > IF3 > BrF3
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