Answer / guest
The water is boiled to precipitate lime present, and also to
kill the germs in it
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Explain how buffer works?
What are the products formed after cod analysis?
If the stopper if a bottle has stuck, sometimes it may be removed by heating the neck, why ?
What general group of organic compounds are not oxidesied in the cod test?
what is the difference between heat and temperature?
What is the acidity of a base
why helium does not react with other elements?
Mention a few advantages of photoelectric colorimetric determination.
When the heat rays from the sun area focused on a piece of black cloth by means of a lens, the cloth catches fire. Why ?
What is Heat of Nutralication ?
Explain the term aliquot and diluent?
What is dextro-rotatory and levo-rotatory?