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it's an practical laboratory question,
they give you a sample of powder,that powder may come under acid/base,
you have to take them with the help of a test tube which you have to hold it by a test tube holder,
then you have to add 2ml of benedict solution(it will be kept in a bottle with a name card) carefully and then you have to heat it carefully for 2 minutes,(medium flame is enough for this)
the you have to use glucose indicator and According to that you have to find the sample comes under which component type
according to me you just practice every samples test,so that you can identify,do lab things without any afraid and clearly on the lab exam
thankyou
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