First slide
Periodicity in atomic properties

Which one of the following oxides is neutral


CO is neutral towards litmus. SnO2​ and ZnO are amphoteric as they form salts and water with acids and bases. SiO2​ is acidic as it forms salts with bases. 

SiO2​ + 2NaOH →Na2​SiO3​+H2​O.

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App