Identify the set that lists substances in strictly increasing order of acidity: (a) human blood, pure lemon juice, vinegar, liquid soap (b) pure lemon juice, vinegar, liquid soap, human blood (c) vinegar, liquid soap, human blood, pure lemon juice (d) liquid soap, human blood, vinegar, pure lemon juice
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In the list given, the increasing order of acidity is given as.
Liquid soap, human blood, vinegar, pure lemon juice.
This implies that the correct answer is choice D.
Pure lemon juice the most acidic followed closely by vinegar.
The reason why I may suppose liquid to be the least acidic is that is it was most acidic it would not have been used sing it would have burnt the hands during washing.
If blood cannot be highly acidic since if it were so then it would have lead to the burning of the body cells.
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