pBlock ElementsII 1 Question 51
51. The total number of compounds having at least one bridging oxo group among the molecules given below is …..
$ \begin{aligned} & \mathrm{N} _{2} \mathrm{O} _{3}, \mathrm{N} _{2} \mathrm{O} _{5}, \mathrm{P} _{4} \mathrm{O} _{6}, \mathrm{P} _{4} \mathrm{O} _{7}, \mathrm{H} _{4} \mathrm{P} _{2} \mathrm{O} _{5}, \mathrm{H} _{5} \mathrm{P} _{3} \mathrm{O} _{10}, \mathrm{H} _{2} \mathrm{S} _{2} \mathrm{O} _{3} \text {, } \\ & \mathrm{H} _{2} \mathrm{S} _{2} \mathrm{O} _{5} \\ \end{aligned} $
(2018 Adv.)
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Answer:
Correct Answer: 51. $(6)$
Solution:
The structures of various molecules given in problem are discussed below-
1 . $N_2O_3$ It is the tautometric mixture of following two structures:
Conclusion $1$ bridging oxo group is present in the compound.
2 . $N_2O_5$ It has the following structure
Conclusion $1$ bridging oxo group is present in the compound.
3 . $P_4O_6$
Conclusion $6$ bridging oxo groupS are present in the compound.
4 . $P_4O_7$
Conclusion $6$ bridging oxo groupS are present in the compound.
5 . $H_4P_2O_5$
Conclusion $1$ bridging oxo group is present in the compound.
6 . $H_5P_3O_10$
Conclusion $2$ bridging oxo groups are present in the compound.
7 . $H_2S_2O_3$
Conclusion This compound does not contain any bridging oxo group.
8 . $H_2S_2O_5$
Conclusion This compound does not contain any bridging oxo group.
BETA
