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Can anyone tell me the observation and conclusion of activity 2.2 science (acids,bases and salt |
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Answer» When basic solution naoh is added to cloth strip then the smell of onion cannot be detected and an acidic solution hcl does not destroy the smell of onion and the same thing also happens with vanilla extract.. It means vanilla extract and onion are olfactory indicators.. Vanilla,onionand clove all used as olfactory indicators if they change their smell after came in contact with acid or base |
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