Bottles of sodium hydroxide, sodium chloride and sugar have lost their labels.
Students test a sample from each bottle. Their results are shown in the table.
What are the correct labels for each bottle?

bottle 1: sodium hydroxide / bottle 2: sodium chloride / bottle 3: sugar
2 )
bottle 1: sodium hydroxide / bottle 2: sugar / bottle 3: sodium chloride
3 )
bottle 1: sodium chloride / bottle 2: sugar / bottle 3: sodium hydroxide
4 )
bottle 1: sugar / bottle 2: sodium hydroxide / bottle 3: sodium chloride
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