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.
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)
Which of the following statements about PCl₅ is incorrect?
| 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 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
Which of the following correctly explains the strong reducing nature of H₃PO₂?
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) |
Which of the following methods does not produce phosphine (PH₃)?
1. Heating white phosphorus with concentrated NaOH2. Heating red phosphorus with NaOH
3. Treating Ca₃P₂ with water
4. Boiling phosphorus trioxide with water
Which of the following statements regarding ozone is incorrect?
1. Powerful oxidising agent.
2. Bleaching agent
3. Paramagnetic
4. Bent shape
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