QJEEAdv18Ch1581: JEE Advanced 2018 Chemistry - Class 12 JEEAdv18Ch1581 Solution: The total number of compounds having at least one bridging oxo…

Question

Verified Solution • 2025–26 Session moderate

The total number of compounds having at least one bridging oxo group among the molecules given below is _________.

N_{2} O_{3}, N_{2} O_{5},

P_{4} O_{6}, P_{4} O_{7},

H_{4} P_{2} O_{5}, H_{5} P_{3} O_{10},

H_{2} S_{2} O_{3}, H_{2} S_{2} O_{5}

Accepted Answer

The structures of various molecules given in problem are discussed below -

1. N₂O₃ It is the tautomeric mixture of following two structures -

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 1

Conclusion 1 bridging oxo group is present in the compound.

2. N₂O₅ It has following structure.

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 2

Conclusion 1 bridging oxo group is present in the compound.

where, p_i = initial pressure, p_t = total pressure, y = number of gaseous products per mole of reactant

3. P₄O₆

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 3

Conclusion 6 bridging oxo groups are present in the compound.

4. P₄O₇

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 4

Conclusion 6 bridging oxo groups are present in the compound.

5. H₄P₂O₅

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 5

Conclusion 1 bridging oxo group is present in the compound.

6. H₅P₃O₁₀

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 6

Conclusion 2 bridging oxo groups are present in the compound.

7. H₂S₂O₃

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 7

Conclusion This compound does not contain any bridging oxo group.

8. H₂S₂O₅

JEE Advanced 2018 Paper 2 Offline Chemistry - p-Block Elements Question 54 English Explanation 8

Conclusion This compound also does not contain any bridging oxo group.

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