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

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


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

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


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

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


advertisementadvertisement

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

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


A compound among the following having a similar structure to graphite is:

1. B
2. B4C
3. B2H6
4. BN

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 63%
From NCERT
AIPMT - 2013

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


A compound among the following that is least likely to behave as a Lewis base is:

1. NH3 2. BF3
3. OH- 4. H2O
Subtopic:  Anomalous Behaviour of B & C |
 79%
From NCERT
AIPMT - 2011

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


advertisementadvertisement

Silicate, among the following, has only one oxygen atom of \([SiO_4]^{4-}\) shared with the next unit:
1. Sheet silicate 2. Pyrosilicate
3. Three dimensional silicate 4. Linear chain silicate
Subtopic:  Carbon Family - Preparations, Properties & Uses |
 59%
From NCERT
AIPMT - 2011

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


The stability of the +1 oxidation state increases in the sequence:

1. Al <Ga<In<Tl

2. Tl<In<Ga<Al

3. In<Tl<Ga<Al

4. Ga<In<Al<Tl

Subtopic:  Boron Family- Preparations, Properties & Uses |
 92%
From NCERT
AIPMT - 2009

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


Al2O3 can be converted to anhydrous AlCl3 by heating:

1. Al2O3 with HCl gas

2. Al2O3 with NaCl in solid-state

3. a mixture of Al2O3  and carbon in dry Cl2 gas

4. Al2O3  with Cl2 gas

Subtopic:  Boron Family- Preparations, Properties & Uses |
AIPMT - 2006

To unlock all the explanations of this course, you need to be enrolled.

Hints

advertisementadvertisement

The incorrect statement among the following is:

1.  SnF4 is ionic in nature.

2.  PbF4 is covalent in nature.

3.  SiCl4 is easily hydrolysed.

4.  GeX4 (X = F, Cl, Br, I) is more stable than GeX2

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 62%
From NCERT
NEET - 2019

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.