The presence of water can be inferred by: (A) using anhydrous \( \mathrm{CuSO}_{4} \) which chan...
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0The presence of water can be inferred by:
(A) using anhydrous \( \mathrm{CuSO}_{4} \) which changes colour
(B) using anhydrous \( \mathrm{CoCl}_{2} \) which changes colour
(C) the use of hydrated \( \mathrm{CuSO}_{4} \)
(D) taste and smell
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