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How many of the following compounds will change blue litmus into red ? (a) Ethanol (b) Ethanoic acid ( c) Ethanal (d) Propanone (e ) Phenol (f) Squari

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How many of the following compounds will change blue litmus into red ?
(a) Ethanol (b) Ethanoic acid
( c) Ethanal (d) Propanone
(e ) Phenol (f) Squaric acid
(g) Propyne (h)Picric acid
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Correct Answer - 4
(b),(e ),(f) (h)
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