MCQ
Strong reducing behaviour of $H_3PO_2$ is due to
  • A
    low co-ordination number of phosphorus
  • B
    high oxidation state of phosphorus
  • C
    presence of two $-OH$ groups and one $P-H$ bond
  • presence of one $-OH$ group and two $P-H$ bonds.

Answer

Correct option: D.
presence of one $-OH$ group and two $P-H$ bonds.
d
Strong reducing behaviour of $\mathrm{H}_{3} \mathrm{PO}_{2}$

All oxy-acid of phosphorus which contain $\mathrm{P}-\mathrm{H}$ bond act as reductant.

presence of one -OH group and two $P-H$ bonds

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Which of the following is the best scientific method to test presence of water in a liquid
When $CH_3CH_2CH_2CHCl_2$ is treated with $2\, gram$ equivalent $NaNH_2$, the product formed is
In an atom, an electron is moving with a speed of $600 \,m/s$ with an accuracy of $0.005\%.$ Certainity with which the position of the electron can be located is $( h =6.6 \times 10^{-34} \,kg\, m^2s^{-1},$ mass of electron, $e_m= 9.1 \times 10^{-31}\, kg)$ :
$A + 2Cl^- $ $→$ $B$

Where $A$ is $PCl^+_4$ while $B$ is $PCl^-_ 6$

Which of the following statement is INCORRECT :

$(I)$ $B$ to $A$ involvement of number of $d-$orbital in hybridization increases

$(II)$ $A$ to $B$ precentage of $p-$character in $P-Cl$ bond increases

$(III) $ Number of covalent bond in $A$ and $B$ are same

$(IV)$ $B$ is product of Lewis acid-base interaction which is associated with super octet molecule only

(i) Copper metal dissolves in $1M $ silver nitrate solution and crystals of silver metal get deposited.

(ii) Silver metal does not react with $1 M$  zinc nitrate solution

(iii) Zinc metal dissolves in $1M$  copper sulphate solution and copper metal gets depositedHence the order of decreasing strength of the three metals as reducing agents will be

Which of the following reactions give benzo phenone
Which of the following anion does not produce precipitate with $BaCl_2$ solution however gives precipitate with $AgNO_3$ ?
Arrange following anions in decresing order of their stability

$\mathop C\limits^\Theta  {H_3},\mathop N\limits^\Theta  {H_2},\,\mathop O\limits^\Theta  H,\,\mathop C\limits^\Theta  l$

The correct order of bond dissociation energy among $N_2, O_2, O_2^-$ is shown in which of the following arrangements?
A given initial mass of $KClO_3$ on $50\%$ decomposition produces $67.2\ litre$ oxygen gas at $0\,^oC$ and $1\ atm$ . The other product of decomposition is $KCl$ . The initial mass of $KClO_3$ (in $gm$) taken is.