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JEE Advanced 2023Paper 2
Exam
JEE Advanced
Year
2023
Paper
Paper 2
Subject
Chemistry
Chapter
Redox Reactions

JEE Advanced 2023 · Paper 2 · Chemistry · Redox Reactions

Consider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S...

Consider the following molecules : Br3O8,F2O,H2S4O6,H2S5O6{Br}_{3}{O}_{8}, {F}_{2}O, {H}_{2}{S}_{4}{O}_{6}, {H}_{2}{S}_{5}{O}_{6}, and C3O2{C}_{3}{O}_{2}. Count the number of atoms existing in their zero oxidation state in each molecule. Their sum isConsider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S _ 4 O _ 6 , H _ 2 S _ 5 O _ 6 , and C _ 3 O _ 2 .Consider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S _ 4 O _ 6 , H _ 2 S _ 5 O _ 6 , and C _ 3 O _ 2 .Consider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S _ 4 O _ 6 , H _ 2 S _ 5 O _ 6 , and C _ 3 O _ 2 .

Correct answer

6

Step-by-step solution

The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. When same atoms are connected, there is no electronegativity difference, hence, no exchange of electrons. Hence, they have zero oxidation states. The structures of the given molecules are shown below with their oxidation states.

Consider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S _ 4 O _ 6 , H _ 2 S _ 5 O _ 6 , and C _ 3 O _ 2 .

Consider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S _ 4 O _ 6 , H _ 2 S _ 5 O _ 6 , and C _ 3 O _ 2 .

Consider the following molecules : Br _ 3 O _ 8 , F _ 2 O, H _ 2 S _ 4 O _ 6 , H _ 2 S _ 5 O _ 6 , and C _ 3 O _ 2 .

Total atom with zero oxidation number state are 66 .

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