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  • 1(current)
Q. No.
The formal charge of \(S\) in \(SO_3\) will be:

1. Zero
2. +1
3. +2
4. +6
Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
Level 4: Below 35%
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A molecule that has a complete octet is:

 1. BeCl2(dimer)       

 2. BeH2(dimer)

 3. BeH2(s)               

 4. BeCl2(s)

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
Level 3: 35%-60%
Hints

In bisulphate ion, HSO4-, the formal charge on S atom is

1. +6

2. +4

3. +1

4. +2

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
Level 3: 35%-60%
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Formal charges of the central atom in \(SO_3\) , \(NO^-_3\)  and  \(NH^+_4\) are, respectively:

1. 0 , +1 , +1

2. +2 , +1 , +1

3. +2 , -1 , +1

4. 0, -1 , +1

Subtopic:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
 50%
Level 3: 35%-60%
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Assertion (A): Generally, the lowest energy structure of a molecule is the one with the smallest formal charges on the atoms.
Reason (R): Formal charge helps in the selection of the lowest energy structure. 
 
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:  Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
Level 4: Below 35%
Please attempt this question first.
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