Q. No.Match the name of process given in column I with the name of compound given in
column II and mark the correct option.
(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)
column II and mark the correct option.
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. |
The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:
1. 2
2. 3
3. 4
4. 1
The incorrect statement regarding oxoacids of phosphorus is:
| 1. | Orthophosphoric acid is used in the manufacture of triple superphosphate. |
| 2. | Hypophosphorous acid is a diprotic acid. |
| 3. | All oxoacids contain tetrahedral four coordinated phosphorus. |
| 4. | All oxoacids contain at least one P=O unit and one P-OH group. |
Which of the following compounds does not release oxygen when heated?
1. Zn(ClO3)2
2. K2Cr2O7
3. (NH4)2Cr2O7
4. KClO3
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.
Which of the following reactions does not exhibit the oxidising behaviour of H2SO4?
1. Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O
2. 3S + 2H2SO4 → 3SO2 + 2H2O
3. C + 2H2SO4 → CO2 + 2SO2 + 2H2O
4. CaF2 + H2SO4 → CaSO4 + 2HF
| 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) |
Phosphine can not be produced by the following reaction:
1. White P is heated with NaOH.
2. Red P is heated with NaOH.
3. Ca3P2 is heated with water.
4. Phosphorus trioxide is boiled with water.
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