Which statements about water are correct?
1- Tap water has fewer impurities than distilled water.
2- Tap water will turn anhydrous cobalt(II) chloride pink.
3- The domestic water supply is treated with carbon to kill microbes.
4- Phosphates from fertilisers can cause deoxygenation of water.
1 )
1 and 2
2 )
1 and 3
2 and 4
4 )
3 and 4
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