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)
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)
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) |
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)
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 |
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 |
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 |
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 |
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 |
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. |