Which of the following statements are correct?
a. | Among halogens, the radius ratio between iodine and fluorine is maximum. |
b. | Leaving F — F bond, all halogens have weaker X — X bond than X — X' bond in interhalogens. |
c. | Among interhalogen compounds a maximum number of atoms are present in iodine fluoride. |
d. | Interhalogen compounds are more reactive than halogen compounds. |
1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)
Which of the following statements are correct for SO2 gas?
a. | It acts as a bleaching agent in moist conditions. |
b. | Its molecule has linear geometry. |
c. | Its dilute solution is used as a disinfectant. |
d. | It can be prepared by the reaction of dilute H2SO4 with metal sulphide. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)
Which of the following statements are correct?
a. | All the three N – O bond lengths in HNO3 are equal. |
b. | All P – Cl bond lengths in PCl5 molecule in the gaseous state are equal. |
c. | P4 molecule in white phosphorus have angular strain therefore white phosphorus is very reactive. |
d. | PCl5 is ionic in a solid-state in which cation is tetrahedral and the anion is octahedral. |
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)
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 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. |