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# Which of the following statements regarding sulphuric acid is not true ?

$\begin{array}{1 1}\text{Concentrated }H_2SO_4\text{ acts as a dehydrating agent}\\\text{Hot concentrated }H_2SO_4\text{ acts as a powerful oxidizing agent}\\\text{The reaction of }PCl_5\text{ with sulphuric acid produces sulphuryl chloride}\\\text{The structure of sulphuric acid in vapour phase is square planar}\end{array}$

Answer : The structure of sulphuric acid in vapour phase is square planar
The structure of $H_2SO_4$ is tetrahedral.