One of the important use of ferrous sulphate is in the (a) Manufacture of blue black ink (b) Manufacture of chalks One of the important use of ferrous sulphate is in the (a) Manufacture of blue black ink (b) Manufacture of chalks December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related