What test will you use to distinguish cotton from wool ?
Answer / guest
Cotton remains unaffected in a strong acid solution, while
the woolen cloth is completely dissolved. Moreover, cotton
burns with fame, whereas wool does not.
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Does domestic/household used kerosene oil which is available in blue color (In India) can change its color over the due course of time say 8-10 years if keeping in plastic bottle? If so, in which color it will be turned to change, yellow or transparent or any other color. Please provide me the reply with strong technical approach. Since it has been asked during an interview. Please reply fast. I will be thankful to you if anyone can provide the supporting journals/write-ups/reference to favour of response.
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?
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What test will you use to distinguish cotton from wool ?
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