The most acidic oxide among TiO2, V2O5, CrO3 and Mn2O7 is

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JEE Main levelSingle correct optionDifficulty 2 of 3df016

The most acidic oxide among $TiO X_{2}$ , $V X_{2} O X_{5}$ , $CrO X_{3}$ and $Mn X_{2} O X_{7}$ is

A $CrO X_{3}$
B $TiO X_{2}$
C $V X_{2} O X_{5}$
D $Mn X_{2} O X_{7}$

Answer: D

The metal oxidation states are +4, +5, +6 and +7 respectively. Acidic character of oxides of a given metal and across a period rises with oxidation state, and

Mn X_{2} O X_{7}

(Mn +7) gives the strong acid

HMnO X_{4}

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The most acidic oxide among TiOX2​, VX2​OX5​, CrOX3​ and MnX2​OX7​ is

Answer: D

More questions on Electronic configuration and general trends of transition metals

The most acidic oxide among $TiO X_{2}$ , $V X_{2} O X_{5}$ , $CrO X_{3}$ and $Mn X_{2} O X_{7}$ is