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A student took four test-tubes containing solutions of different colours marked I, II, III and IV as shown here. The test-tubes containing copper sulphate solution and ferrous sulphate solution could be the tubes :(1) I and III(2) II and III(3) III and IV(4) II and IV |
Answer» A student took four test-tubes containing solutions of different colours marked I, II, III and IV as shown here. The test-tubes containing copper sulphate solution and ferrous sulphate solution could be the tubes :![]() (1) I and III (2) II and III (3) III and IV (4) II and IV |
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