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  • 1(current)
Q. No.
Consider the given two statements:
Assertion (A): Sn4+ ion is more stable than Sn+2.
Reason (R): The inert pair effect dominates down the groups.
Options:
1. Both (A) and (R) are True and (R) is the correct explanation of  (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Carbon Family - Preparations, Properties & Uses |
Level 3: 35%-60%
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Given below are two statements:
Statement I: In group 14, a significant increase in covalent radius is observed from carbon to silicon, and thereafter, a small increase in covalent radius is observed from silicon to germanium.
Statement II: A considerable difference in the values of electronegativity from silicon to lead is observed.
 
1. Both Statement I and Statement II are correct. 
2. Both Statement I and Statement II are incorrect. 
3. Statement I is correct but Statement II is incorrect. 
4. Statement I is incorrect but Statement II is correct. 
Subtopic:  Carbon Family - Preparations, Properties & Uses |
Level 3: 35%-60%
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The element among the following that forms dioxide and evolves
hydrogen on treatment with steam is:

1. C 
2. Si 
3. Sn 
4. Pb 
Subtopic:  Carbon Family - Preparations, Properties & Uses |
Level 3: 35%-60%
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The best reducing agent is

1. GeCl2

2. SnCl2

3. PbCl2

4. PbCl4

Subtopic:  Carbon Family - Preparations, Properties & Uses |
Level 3: 35%-60%
Hints

Which compound is formed when iron reacts with carbon?

1. FeC2       

2. Fe3C     

3. FeC3 

 4. Fe2C

Subtopic:  Carbon Family - Preparations, Properties & Uses |
Level 4: Below 35%
Hints

Choose the correct set of elements X, Y, and Z, which belong to groups 13, 14, and 15, respectively, from the options below.


1. X = Th, Y = Pb,  Z= Bi
2. X = In,  Y = Sn,  Z= At
3. X = Th, Y = Sn,  Z= Sb
4. X = Tl,  Y = Pb,  Z= Bi
Subtopic:  Boron Family- Preparations, Properties & Uses | Carbon Family - Preparations, Properties & Uses |
 71%
Level 2: 60%+
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The correct option for the increasing order of 1st ionization enthalpy:\(Pb, Sn, Ge, Si \) is:
1. \(Pb < Sn < Ge < Si \)            
2. \(Sn < Pb < Si < Ge \)            
3. \(Sn < Pb < Ge < Si\)            
4. \( Pb <Sn < Si < Ge \)            
Subtopic:  Carbon Family - Preparations, Properties & Uses |
 59%
Level 3: 35%-60%
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