Which of the following is a colourless ion (a) Cu +2 (b) Fe +3 (c) Ti +3 (d) Zn +2 Which of the following is a colourless ion (a) Cu +2 (b) Fe +3 (c) Ti +3 (d) Zn +2 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,