Sum of $\pi-$ bond present in peroxodisulphuric acid and pyrosulphuric acid is:
The number of \( \mathrm{P-O-P} \) bonds in \( \mathrm{H_4P_2O_7} \), \( \mathrm{(HPO_3)_3} \) and \( \mathrm{P_4O_{10}} \) are respectively
$\text{Bond dissociation energy of “E-H” bond of the “H}_2\text{E” hydrides of group 16 elements (given below), follows order.}$$\text{A. O} \quad \text{B. S} \quad \text{C. Se} \quad \text{D. Te}$
“A” obtained by Ostwald’s method involving air oxidation of \( \mathrm{NH_3} \), upon further air oxidation produces “B”. “B” on hydration forms an oxoacid of Nitrogen along with evolution of “A”. The oxoacid also produces “A” and gives positive brown ring test. Identify A and B, respectively.
\( \mathrm{ClF_5} \) at room temperature is a:
Total number of acidic oxides among \( \mathrm{N_2O_3}, \mathrm{NO_2}, \mathrm{N_2O}, \mathrm{Cl_2O_7}, \mathrm{SO_2}, \mathrm{CO}, \mathrm{CaO}, \mathrm{Na_2O} \) and \( \mathrm{NO} \) is __________.
Match List I with List II:
Choose the correct answer from the options given below:
Which of the Phosphorus oxoacid can create silver mirror from \( \mathrm{AgNO_3} \) solution?
The correct group of halide ions which can be oxidised by oxygen in acidic medium is:
One mole of \( \text{P}_4 \) reacts with \( 8 \) moles of \( \text{SOCl}_2 \) to give \( 4 \) moles of \( A \), \( x \) mole of \( \text{SO}_2 \) and \( 2 \) moles of \( B \). \( A \), \( B \) and \( x \) respectively are:
Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [A] and [B] are respectively.
The ratio of sigma and \( \pi \) bonds present in pyrophosphoric acid is______________.
