Download App

7. Redox reactions — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry7. Redox reactions1 Mark
MCQ
Which one has maximum oxidation number of phosphorous
  • A
    $PH_3$
  • B
    $H_4P_2O_6$
  • ✓
    $H_3PO_4$
  • D
    $H_3PO_3$
✓

Answer

Correct option: C.
$H_3PO_4$
c
$H_3PO_4$ oxidation state of $P = +5$

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

Explore more

More "M.C.Q (1 Marks)" from 7. Redox reactions→7. Redox reactions — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

The energy of one mole of photons of radiation of wavelength $300 nm$ is ...... $kJ \,mol ^{-1}$. 

(Given : $h =6.63 \times 10^{-34} \,Js , N _{ A }=6.02 \times 10^{23} \,mol ^{-1}$, $c =3 \times 10^{8}\, ms ^{-1}$ )

→
Temperature of $1\,mol$ gas is increased by $2\,^oC$ at constant pressure than work done will be
→
The nucleus of the element $_{21}{E^{45}}$ contains
→
$SnC{l_2}$ gives a precipitate with a solution of $HgC{l_2}.$ In this process $HgC{l_2}$ is
→
The minimum energy that must be possessed by photons in order to produce the photoelectric effect with platinum metal is $....\,\times 10^{-19} \,J$

[Given: The threshold frequency of platinum is $1.3$ $\times 10^{15} \,s ^{-1}$ and $h =6.6 \times 10^{-34} \,J \,s$.]

→
Total number of isomers (including stereoisomers) obtain on monochlorination of methylcyclohexane is $........$
→
A sample of ammonium phosphate, $(NH_4)_3PO_4$ , contains $6\,moles$ of hydrogen atoms. The number moles of oxygen atoms in the sample is
→
The total number of lone pairs of electrons on oxygen atoms of ozone is $...........$.
→
Oxidation state of $Fe$ in $F{e_3}{O_4}$ is
→
The order of relative reactivity of the given halides towards $S_N2$ reaction is :
→