Q. No.Mn2+ compounds are more stable than Fe2+ compounds towards oxidation in their +3 state because :
| 1. | 3d5 configuration is more stable than 3d6 configuration. |
| 2. | 3d6 configuration is more stable than 3d5 configuration. |
| 3. | 3p5 configuration is less stable than 3p6 configuration. |
| 4. | 3p6 configuration is less stable than 3p5 configuration. |
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.
Transition metals show paramagnetic behaviour due to:
| 1. | Paired electrons in the (n-1) d-orbitals | 2. | Unpaired electrons in the (n-1) d-orbitals |
| 3. | Due to \(d^{10},\) and \(d^{0}\) configuration | 4. | None 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.
The correct statement(s) about interstitial compounds is/are:
| 1. | Transition elements are large in size and contain multiple interstitial sites. |
| 2. | Transition elements can trap atoms of other elements. |
| 3. | Interstitial compounds are chemically inert. |
| 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.
An element among the following that exhibits the maximum oxidation state is:
1. Cr
2. Mn
3. Fe
4. V
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 properties given in Column I with uses given in Column II
| Column I-(Property) | Column II-(Metal) | ||
| A. | An element that can show +8 oxidation state | 1. | Mn |
| B | 3d block element that can show up to +7 | 2. | Cr |
| C | 3d block element with the highest melting point | 3. | Os |
| 4. | Fe | ||
| A | B | C | |
| 1. | 3 | 1 | 2 |
| 2. | 1 | 2 | 3 |
| 3. | 1 | 4 | 3 |
| 4. | 4 | 2 | 3 |
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 d-block elements that may not be regarded as transition elements are :
| 1. | Mn, Fe, Ni because these have partially filled d-subshell. |
| 2. | Mn, Fe, Ni because these have completely filled d-subshell. |
| 3. | Zn, Cd, and Hg because these have completely filled d-subshell. |
| 4. | Zn, Cd, and Hg because these have partially filled d-subshell. |
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 correct statement(s) regarding the oxidation state of transition elements is/are:
| 1. | The oxidation state can vary from +1 to +7 | 2. | Variable oxidation states are possible. |
| 3. | Both (1) and (2) | 4. | None 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.
Match the catalysts given in Column I with the processes given in Column II.
| Column I - (Catalyst) | Column II - (Process) | ||
| A. | Ni in the presence of hydrogen | 1. | Contact process |
| B. | Cu2Cl2 | 2. | Vegetable oil to ghee |
| C. | V2O5 | 3. | Sandmeyer reaction |
| D. | Finely divided iron | 4. | Haber's process |
| 5. | Decomposition of KClO3 | ||
Codes
| A | B | C | D | |
| 1. | 3 | 4 | 2 | 5 |
| 2. | 2 | 3 | 1 | 4 |
| 3. | 5 | 4 | 3 | 2 |
| 4. | 4 | 5 | 3 | 2 |
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.
The correct statement(s) about transition elements is/are:
| 1. | The lowest oxide of a transition metal is basic, the highest is amphoteric/acidic. |
| 2. | A transition metal exhibits the highest oxidation state in oxides and fluorides. |
| 3. | The highest oxidation state is exhibited in the oxoanions of a metal. |
| 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.
© 2024 GoodEd Technologies Pvt. Ltd.