- 1(current)
Q. No.Identify the incorrect statement:
| 1. | The relative stability of group 13 elements in +1 oxidation state varies as: Al < Ga < In < Tl. |
| 2. | Boron trioxide is acidic; aluminium and gallium trioxides are amphoteric, while indium and thallium trioxides are basic. |
| 3. | The hybridisation of Al in \(\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) is \(\text{d}^2\text{ sp}^3.\) |
| 4. | Two isotopes of Boron, namely \(^{10}\!\mathrm{~B}(19 \%)\) and , \(^{11}\! \mathrm{~B}(81 \%)\) are known. |
Subtopic: Boron Family- Preparations, Properties & Uses |
74%
From NCERT
NEET - 2024
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
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NEET 2026 - Target Batch - Vital
Select the element (M) whose trihalides cannot be hydrolysed to form [M(H2O)6]3+.
| 1. | Ga | 2. | In |
| 3. | Al | 4. | B |
Subtopic: Boron Family- Preparations, Properties & Uses |
75%
From NCERT
NEET - 2023
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
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NEET 2026 - Target Batch - Vital
The \(E^{\ominus}\) values for
\(\begin{aligned} & \mathrm{Al}^+ / \mathrm{Al}=+0.55 \mathrm{~V} \text { and } \mathrm{Tl}^{+} / \mathrm{Tl}=-0.34 \mathrm{~V} \\ & \mathrm{Al}^{3+} / \mathrm{Al}=-1.66 \mathrm{~V} \text { and } \mathrm{Tl}^{3+} / \mathrm{Tl}=+1.26 \mathrm{~V} \end{aligned} \)
The incorrect statement among the following is:
1. Al is more electropositive than TI.
2. Tl3+ is a good reducing agent than Tl1+.
3. Al+ is unstable in solution.
4. Tl can be easily oxidized to Tl+ as compared to Tl3+.
\(\begin{aligned} & \mathrm{Al}^+ / \mathrm{Al}=+0.55 \mathrm{~V} \text { and } \mathrm{Tl}^{+} / \mathrm{Tl}=-0.34 \mathrm{~V} \\ & \mathrm{Al}^{3+} / \mathrm{Al}=-1.66 \mathrm{~V} \text { and } \mathrm{Tl}^{3+} / \mathrm{Tl}=+1.26 \mathrm{~V} \end{aligned} \)
The incorrect statement among the following is:
1. Al is more electropositive than TI.
2. Tl3+ is a good reducing agent than Tl1+.
3. Al+ is unstable in solution.
4. Tl can be easily oxidized to Tl+ as compared to Tl3+.
Subtopic: Boron Family- Preparations, Properties & Uses |
66%
From NCERT
NEET - 2023
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Which of the following is the correct statement?
1. Ga+ is more stable than ln+.
2. Al+ is more stable than ln+.
3. Ga+ is more stable than Al+.
4. Al+ is more stable than Ga+.
Subtopic: Boron Family- Preparations, Properties & Uses |
81%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
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NEET 2026 - Target Batch - Vital
Aluminium chloride in acidified aqueous solution forms a complex 'A'.
The formula of A and hybridisation state of Al in 'A' is respectively:
1. [Al(H2O)6]3+, sp3d2
2. [Al(H2O)4]3+, sp3
3. [Al(H2O)4]3+, dsp2
4. [Al(H2O)]3+, d2sp3
Subtopic: Boron Family- Preparations, Properties & Uses |
79%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
- 1(current)
Q. No.
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