Which one is the anhydride of \(HClO_4\)?
\({2HClO_4 \to H_2O + CI_2O_7}\)
\(CI_2O_7\) is an anhydride of HClO4. An anhydride is the chemical compound that is formed from another compound by the removal of water molecules. Anhydride means without water.
So, the correct answer is (D): Cl2O7
Given below are two statements. 
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements:
Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of $\mathrm{p} \pi-\mathrm{p} \pi$ bond with oxygen.
Statement II: Nitrogen does not form halides with +5 oxidation state due to the absence of d-orbital in it.
In the light of the above statements, choose the correct answer from the options given below: