Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of (a) NO (b) NO2 (c) N2O (d) N2O4 Concentrated nitric acid turns yellow-brown due to the formation of (a) NO (b) NO2 (c) N2O (d) N2O4 upon long standing November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related