What is difference between LVT and RVT Viscometer?
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Why are substances like caustic soda and calcium chloride called hygroscopic substances ?
Explain the Atomic Molecular Theory ?
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?????????
What is chemical oxygen demand?
Explain the following ? Matter, Element, Atom, Compound, Molecule, Mixture, Physical change, Chemical change
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 are the names of the three different rays emitted by radioactive substances ?
What is weak acid?
What is the monomer of polyethene?
What is meant by amalgam ?
What is the unit of ph?
What is the chemical composition of fat in human body?