It is because inability of ns2 electrons of the valence shell to participate in bonding that

1. Sn2+ is reducing while Pb4+ is oxidising agent

2. Sn2+ is oxidising while Pb4+ is reducing agent

3. Sn2+ and Pb2+ are both oxidising and reducing agent

4. Sn4+ is reducing while Pb4+ is oxidising agent

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 66%
NEET - 2017
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AlF3 is soluble in HF only in the presence of KF due to the formation of:

1. K3[AlF3H3] 2. K3[AlF6]
3. AlH3 4. K[AlF3H]
Subtopic:  Boron Family- Preparations, Properties & Uses |
 79%
From NCERT
NEET - 2016
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The correct statement among the following is :

1. Sn2+ is an oxidizing agent while Pb4+ is a reducing agent.
2. Sn2+ and Pb2+ both are oxidizing agents.
3. Sn4+ is a reducing agent while Pb4+ is an oxidizing agent.
4. Sn2+ is a reducing agent while Pb4+ is an oxidizing agent.

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 67%
From NCERT
NEET - 2017
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An element that cannot form MF63- ion is-

1. Ga 2. Al
3. B 4. In
Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 81%
From NCERT
NEET - 2018
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The correct order of atomic radii of the group 13 elements is-

1. B < Al < In < Ga < Tl
2. B < Al < Ga < In < Tl
3. B < Ga < Al < Tl < In
4. B < Ga < Al < In < Tl

Subtopic:  Boron Family- Preparations, Properties & Uses |
 68%
From NCERT
NEET - 2018
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