Q. No.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
| 1. | Neon gas is filled in discharge tubes with characteristic colours. |
| 2. | Neon gas is used in beacon lights. |
| 3. | Argon along with nitrogen is used in gas-filled electric lamps. |
| 4. | All of the above. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 oxidation state of central atom. | 1 | He |
| B | It is used in modern diving apparatus. | 2 | XeF6 |
| C | It is used to provide inert atmosphere for filling electrical bulbs. | 3 | XeF4 |
| D | It's central atom is in sp3d2 hybridisation. | 4 | Ar |
Codes
| A | B | C | D | |
| 1. | 1 | 4 | 2 | 3 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 2 | 1 | 4 | 3 |
| 4. | 1 | 3 | 2 | 4 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
\(\mathrm{Xe}+\mathrm{PtF}_6 \rightarrow \text { ? }\)
The product of the above reaction is:
| 1. | \(\mathrm{O}_2{ }^{+}\left[\mathrm{PtF}_6\right]^{-}. \) | 2. | \(\mathrm{XeF}_4 \) |
| 3. | \(\mathrm{XeF}_6 \) | 4. | \(\mathrm{Xe}^{+}\left[\mathrm{PtF}_6\right]^{-}\) |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The molecular shapes of SF4, CF4 and XeF4 are:
| 1. | The same with 2, 0 and 1 lone pairs of electrons on the central atoms, respectively |
| 2. | The same with 1, 1 and 1 lone pairs of electrons on the central atoms, respectively |
| 3. | Different with 0, 1 and 2 lone pairs of electrons on the central atoms, respectively |
| 4. | Different with 1, 0 and 2 lone pairs of electrons on the central atoms, respectively |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
(a) XeF6 + 3H2O →
(b) XeF6 + H2O
The products formed in the above reactions, respectively, are:
1. XeO3 , XeOF4
2. XeO6 , XeOF4
3. XeO3, XeOF6
4. XeO6 , XeOF6
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Which of the following statements is false?
| 1. | H3PO2, H3PO3 and H3PO4 all are tribasic and reducing in nature. |
| 2. | Amongst anions \(NO_{3}^{-}\), \(SO_{3}^{2-}\), \(CO_{3}^{2-}\), and \(BO_{3}^{3-}\), only \(SO_{3}^{2-}\) have pπ-dπ bonding . |
| 3. | Amongst anions \(SO_{3}^{2-}\), \(SO_{4}^{2-}\), \(S_{2}O_{4}^{2-}\) and \(HSO_{4}^{-}\), \(SO_{3}^{2-}\) is basic and reducing in nature. |
| 4. | Number of lone pair(s) of electrons on Xe atoms in XeF2, XeF4 and XeF6 are 3, 2 and 1 respectively._ |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Among the following molecules,
(i)
(ii)
(iii)
Those having the same number of lone pairs on Xe are
1. (i) and (ii) only
2. (i) and (iii) only
3. (ii) and (iii) only
4. (i), (ii) and (iii) only
© 2024 GoodEd Technologies Pvt. Ltd.