Mark the oxide which is amphoteric in character
CO2
SiO2
SnO2
CaO
SnO2+2NaOH→Na2SnO3+H2O
SnO2+4HCL→SnCl4+2H20
Which of the following oxides is amphoteric in character
the order of metallic character of elements A, B, C and D is D>A>C>B
1. What is the order of their electronegative character?
2. What is the nature of oxide of B if oxide of A is amphoteric?
Classify Na2O, Al2O3 and SO3 as acidic, basic or amphoteric oxide. [3 MARKS]