Which of the following oxides is amphoteric in character?

Question

Which of the following oxides is amphoteric in character? (A)  SnO2  (B)  SiO2  (C)  CO2  (D)  CaO

Tardigrade Admin · Accepted Answer

A species is amphoteric if it is soluble in acid (behaves as a base) as well as in base (behaves as an acid) SnO2 is an amphoteric oxide SnO2 + 4HCl → SnCl4+2H2O SnO2 +2NaOH → Na2SnO3+H2O

Q. Which of the following oxides is amphoteric in character?

$S n O_{2}$

$S i O_{2}$

$C O_{2}$

$C a O$

A species is amphoteric if it is soluble in acid (behaves as a base) as well as in base (behaves as an acid)
$S n O_{2}$ is an amphoteric oxide
$S n O_{2} + 4 H Cl \to S n C l_{4} + 2 H_{2} O$
$S n O_{2} + 2 N a O H \to N a_{2} S n O_{3} + H_{2} O$

Q. Which of the following oxides is amphoteric in character?

SnO2​

SiO2​

CO2​

CaO

A species is amphoteric if it is soluble in acid (behaves as a base) as well as in base (behaves as an acid) SnO2​ is an amphoteric oxide SnO2​+4HCl→SnCl4​+2H2​O SnO2​+2NaOH→Na2​SnO3​+H2​O

$S n O_{2}$

$S i O_{2}$

$C O_{2}$

$C a O$

A species is amphoteric if it is soluble in acid (behaves as a base) as well as in base (behaves as an acid)
$S n O_{2}$ is an amphoteric oxide
$S n O_{2} + 4 H Cl \to S n C l_{4} + 2 H_{2} O$
$S n O_{2} + 2 N a O H \to N a_{2} S n O_{3} + H_{2} O$