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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 |
From NCERT
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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 |
From NCERT
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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 |
From NCERT
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Formal charges of central atom in SO3 , \(NO^-_3\)  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 |
From NCERT
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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 |
From NCERT
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