(B) To find the oxidation state of phosphorus $(P)$ in $H_3PO_4$,let its oxidation state be $x$. The oxidation states of $H$ and $O$ are $+1$ and $-2$

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(B) To find the oxidation state of phosphorus $(P)$ in $H_3PO_4$,let its oxidation state be $x$. The oxidation states of $H$ and $O$ are $+1$ and $-2$ respectively. The sum of oxidation states in a neutral molecule is $0$. $3(+1) + x + 4(-2) = 0$ $3 + x - 8 = 0$ $x - 5 = 0$ $x = +5$. Thus,the oxidation state of phosphorus is $5$.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Valency and oxidation state

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The valency (oxidation state) of phosphorus in $H_3PO_4$ is

A
$2$
B
$5$
C
$4$
D
$1$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Valency and oxidation state

Provide information regarding the oxidation numbers of elements present in the periodic table.

Medium

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Number of elements from the following that $CANNOT$ form compounds with valencies which match with their respective group valencies is
$B, C, N, S, O, F, P, Al, Si$

MediumJEE MAIN 2024

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Which among the following pairs of elements show the highest oxidation state of $+7$ in their different compounds? (Atomic numbers: $Cr=24, V=23, Mn=25, Cl=17, S=16$)

MediumMHT CET 2020

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Describe the periodic trends in the valence of elements with respect to their oxides and hydrides.

Difficult

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Using Stock notation,represent the following compounds: $HAuCl_{4}$,$Tl_{2}O$,$FeO$,$Fe_{2}O_{3}$,$CuI$,$CuO$,$MnO$,and $MnO_{2}$.

Medium

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The valency (oxidation state) of phosphorus in $H_3PO_4$ is

Similar Questions

Provide information regarding the oxidation numbers of elements present in the periodic table.

Number of elements from the following that $CANNOT$ form compounds with valencies which match with their respective group valencies is $B, C, N, S, O, F, P, Al, Si$

Which among the following pairs of elements show the highest oxidation state of $+7$ in their different compounds? (Atomic numbers: $Cr=24, V=23, Mn=25, Cl=17, S=16$)

Describe the periodic trends in the valence of elements with respect to their oxides and hydrides.

Using Stock notation,represent the following compounds: $HAuCl_{4}$,$Tl_{2}O$,$FeO$,$Fe_{2}O_{3}$,$CuI$,$CuO$,$MnO$,and $MnO_{2}$.

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Number of elements from the following that $CANNOT$ form compounds with valencies which match with their respective group valencies is
$B, C, N, S, O, F, P, Al, Si$