(C) To find the oxidation state of $V$ in $VO^{2+}$: Let the oxidation state be $x$. Since the charge on oxygen is $-2$,we have $x + (-2) = +2$,which

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(C) To find the oxidation state of $V$ in $VO^{2+}$: Let the oxidation state be $x$. Since the charge on oxygen is $-2$,we have $x + (-2) = +2$,which gives $x = +4$. In $VO_2^+$,$x + 2(-2) = +1 \implies x = +5$. In $V(OH)_4^+$,$x + 4(-1) = +1 \implies x = +5$. In $[VO_3 \cdot OH]^{2-}$,$x + 3(-2) + (-1) = -2 \implies x - 7 = -2 \implies x = +5$. Thus,$VO^{2+}$ is the only ion where vanadium is in the $+IV$ oxidation state.

Class 12 Chemistry The d- and f-Block Elements Compounds of Transitional elements

Medium

Each of the following ions contains vanadium in the $+V$ oxidation state except:

A
$VO_2^+$
B
$V(OH)_4^+$
C
$VO^{2+}$
D
$[VO_3 \cdot OH]^{2-}$

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Chapter

The d- and f-Block Elements

Subtopic

Compounds of Transitional elements

Fill in the blanks:
$1.$ Heating lanthanoids with sulfur gives .......
$2.$ Mixed oxides of lanthanoids are used as catalysts in ..........

Medium

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Which of the following is a product of the first step and is used as a reactant in the next step for the manufacture of $K_{2}Cr_{2}O_{7}$ from concentrated chromite ore?

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Which of the following is used in the manufacture of high refractive index optical glass for cameras?

Easy

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Which of the following has conductivity and appearance like that of copper metal?

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Match the following:

List-$I$ (Aquated Ion) List-$II$ (Colour)

$A. Ni^{2+}$ $I. \text{Violet}$

$B. Fe^{3+}$ $II. \text{Blue}$

$C. Mn^{3+}$ $III. \text{Yellow}$

$D. V^{4+}$ $IV. \text{Red}$

$V. \text{Green}$

List-$I$ (Aquated Ion)	List-$II$ (Colour)
$A. Ni^{2+}$	$I. \text{Violet}$
$B. Fe^{3+}$	$II. \text{Blue}$
$C. Mn^{3+}$	$III. \text{Yellow}$
$D. V^{4+}$	$IV. \text{Red}$
	$V. \text{Green}$

MediumAP EAMCET 2025

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Each of the following ions contains vanadium in the $+V$ oxidation state except:

Similar Questions

Fill in the blanks:$1.$ Heating lanthanoids with sulfur gives .......$2.$ Mixed oxides of lanthanoids are used as catalysts in ..........

Which of the following is a product of the first step and is used as a reactant in the next step for the manufacture of $K_{2}Cr_{2}O_{7}$ from concentrated chromite ore?

Which of the following is used in the manufacture of high refractive index optical glass for cameras?

Which of the following has conductivity and appearance like that of copper metal?

Match the following: List-$I$ (Aquated Ion) List-$II$ (Colour) $A. Ni^{2+}$ $I. \text{Violet}$ $B. Fe^{3+}$ $II. \text{Blue}$ $C. Mn^{3+}$ $III. \text{Yellow}$ $D. V^{4+}$ $IV. \text{Red}$ $V. \text{Green}$

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Fill in the blanks:
$1.$ Heating lanthanoids with sulfur gives .......
$2.$ Mixed oxides of lanthanoids are used as catalysts in ..........

Match the following:

List-$I$ (Aquated Ion) List-$II$ (Colour)

$A. Ni^{2+}$ $I. \text{Violet}$

$B. Fe^{3+}$ $II. \text{Blue}$

$C. Mn^{3+}$ $III. \text{Yellow}$

$D. V^{4+}$ $IV. \text{Red}$

$V. \text{Green}$