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Q. No.Which of the following orders are correct as per the properties mentioned against each?
Column I
Column II
(a)
As2O3 < SiO2 < P2O3 < SO2
(i)
Acid strength.
(b)
AsH3 < PH3 < NH3
(ii)
Enthalpy of vaporisation.
(c)
S < O < Cl < F
(iii)
More negative electron gain enthalpy.
(d)
H2O > H2S > H2Se > H2Te
(iv)
Thermal stability.
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
69%
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Which of the following statements are correct?
| a. | S — S bond is present in H2S2O6 |
| b. | In peroxosulphuric acid (H2SO5) sulphur is in +6 oxidation state |
| c. | Iron powder along with Al2O3 and K2O is used as a catalyst in the preparation of NH3 by Haber's process |
| d. | Change in enthalpy is positive for the preparation of SO3 by catalytic oxidation of SO2 |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Group 16 - Preparation, Properties & Uses |
50%
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In which of the following reactions conc. H2SO4 is used as an oxidising reagent?
| a. | CaF2 + H2SO4 → CaSO4 + 2 HF |
| 2. | 2HI + H2SO4 → I2 + SO2 + 2H2O |
| 3. | Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O |
| 4. |
Choose the correct option:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Group 16 - Preparation, Properties & Uses |
81%
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Which of the following statements is/are true?
| a. | Only types of interactions between particles of noble gases are due to weak dispersion forces. |
| b. | The ionization enthalpy of molecular oxygen is very close to that of xenon. |
| c. | Hydrolysis of XeF6 is a redox reaction. |
| d. | Xenon fluorides are not reactive. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Group 18 - Preparation, Properties & Uses |
69%
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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. | sp3d3 distorted octahedral |
| B. | XeO3 | 2. | sp3d2 square planar |
| C. | XeOF4 | 3. | sp3 pyramidal |
| D. | XeF4 | 4. | sp3d2 square pyramidal |
Codes
| Options: | A | B | C | D |
| 1. | 1 | 3 | 4 | 2 |
| 2. | 1 | 2 | 4 | 3 |
| 3. | 4 | 3 | 1 | 2 |
| 4. | 4 | 1 | 2 | 3 |
Subtopic: Group 18 - Preparation, Properties & Uses |
84%
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Match the formulas of oxides are given in Column I with the type of oxide given in Column II and mark the correct option.
| Column I | Column II | ||
| A. | Pb3O4 | 1. | Neutral oxide |
| B. | N2O | 2. | Acidic oxide |
| C. | Mn2O7 | 3. | Basic oxide |
| D. | Bi2O3 | 4. | Mixed oxide |
Codes
| Options: | A | B | C | D |
| 1. | 1 | 2 | 3 | 4 |
| 2. | 4 | 1 | 2 | 3 |
| 3. | 3 | 2 | 4 | 1 |
| 4. | 4 | 3 | 1 | 2 |
Subtopic: Group 17 - Preparation, Properties & Uses |
90%
From NCERT
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Match the items in Columns I and II and mark the correct option.
| Column I | Column II |
| A. H2SO4 | 1. Highest electron affinity |
| B. CCl3NO2 | 2. Chalcogen |
| C. Cl2 | 3. Tear gas |
| D. Sulphur | 4. Storage batteries |
Codes
| A | B | C | D | |
| 1. | 4 | 3 | 1 | 2 |
| 2. | 3 | 4 | 1 | 2 |
| 3. | 4 | 1 | 2 | 3 |
| 4. | 2 | 1 | 3 | 4 |
Subtopic: Group 16 - Preparation, Properties & Uses |
87%
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Match the species given in Column I with the shape given in Column II and mark the correct option.
| Column I | Column II |
| A. SF4 | 1. Tetrahedral |
| B. BrF3 | 2. Pyramidal |
| C. BrO-3 | 3. Sea-saw shaped |
| D. NH4+ | 4. Bent T-shaped |
Codes
| A | B | C | D | |
| 1. | 3 | 2 | 1 | 4 |
| 2. | 3 | 4 | 2 | 1 |
| 3. | 1 | 2 | 3 | 4 |
| 4. | 1 | 4 | 3 | 2 |
Subtopic: Group 17 - Preparation, Properties & Uses | Group 16 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
82%
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Match the species given in Column I with the shape given in Column II and mark the correct option.
| Column I | Column II | ||
| A. | Its partial hydrolysis does not change the oxidation state of the central atom. | 1. | He |
| B. | It is used in modern diving apparatus. | 2. | XeF6 |
| C. | It is used to provide an inert atmosphere for filling electrical bulbs. | 3. | XeF4 |
| D. | Its central atom is in sp3d2 hybridisation. | 4. | Ar |
Codes
| Options: | A | B | C | D |
| 1. | 1 | 4 | 2 | 3 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 2 | 1 | 4 | 3 |
| 4. | 1 | 3 | 2 | 4 |
Subtopic: Group 18 - Preparation, Properties & Uses |
92%
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Given below are two statements:
| Assertion (A): | N2 is less reactive than P4. |
| Reason (R): | Nitrogen has more electron gain enthalpy than phosphorus. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Group 15 - Preparation, Properties & Uses |
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