Co – ordinate bond is absent in (a) BH4 (b) CO3^-2 (c) H3O ^+ (d) NH4 Co - ordinate bond is absent in (a) BH4 (b) CO3^-2 (c) H3O ^+ (d) NH4 December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related