Why does the water in tanks and ponds not freeze in winter ?
what is the equation for iodine and starch when they are combined?
What test will you use to distinguish cotton from wool ?
Which gas is used in refrigeration plants ?
What is the bluish white precipitate formed after adding ammonia solution?
Differentiate between modern periodic table and mendeleevs table?
What is Filtration ?
What is photoelectric colorimeter?
Explain about Graham?s law of Diffusion ?
why helium does not react with other elements?
Why ph scale range is 14?
How are the waters classified based on the degree of hardness?
what is the name of the material used in making the plates used for serving food in hotels?