Single Choice

Which of the following is amphoteric oxide? $$Mn_2O_7, \, CrO_3, \, Cr_2O_3, \, CrO, \, V_2O_5, \, V_2O_4$$

A$$V_2O_5, \, Cr_2O_3$$
Correct Answer
B$$Mn_2O_7, \, CrO_3$$
C$$CrO, \, V_2O_5$$
D$$V_2O_5, \, V_2O_4$$

Solution

In chemistry, an amphoteric species is a molecule or ion which can react as an acid as well as a base. This word is derived from the Greek word amphotericin which is meant for "both". Many metals like zinc, tin, lead, aluminium, beryllium, etc form amphoteric oxides or hydroxides. Here both $$V_{2}O_{5}$$ and $$Cr_{2}O_{3}$$ can show the property of acidic as well as basic oxide both. Thus option A is correct.

SIMILAR QUESTIONS

p - block Elements

Which of the following is an amphoteric oxide?

p - block Elements

Which one of the following is an amphoteric oxide?

p - block Elements

Which of the following oxides reacts with Both $$HCl$$ and $$NaOH$$ ?

p - block Elements

In the following sets of reactants which two sets exhibit the amphoteric character of $$Al_2O_3.xH_2O$$? Set 1 : $$Al_2O_3.xH_2O$$ (s) and $$OH^-(aq)$$ Set 2 : $$Al_2O_3.xH_2O$$ (s) and $$H_2O (l)$$ Set 3 : $$Al_2O_3.xH_2O$$ (s) and $$H^+ (aq)$$ Set 4 : $$Al_2O_3.xH_2O$$ (s) and $$NH_3 (aq)$$

p - block Elements

Which of the following oxide is amphoteric?

p - block Elements

The option(s) with only amphoteric oxides is (are):

p - block Elements

What are amphoteric oxides? Give two examples of amphoteric oxides.

p - block Elements

Which of the following sets of oxides is amphoteric in nature?

p - block Elements

Which of the following is not an amphoteric ion?

p - block Elements

Select the amphoteric substance in the following :

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