What is chemical oxygen demand?
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Explain about Paints and Pigments ?
What is the composition of brass ?
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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.
What is the use of nitrogen in air ?
What is the application of hardness date in environmental engineering practice?
Explain the Hard and Soft water ?
Define Vulcanization?
Explain the Stable configuration?
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 suudenly heatd, it cracks. Why?????????
When we heat one end of and iron bar, the other end also gets heated up why ?
What is an indicator electrode?
What materials are needed in making glass ?