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Answer Posted / casper
metals
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However ozone is heavier than oxygen still ozone is up there in sky why?
Why is ammonia solution added while preparing edta solution?
Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?
What are the advantages of potentiometric titration?
Why are the titration involving edta carried out slowly towards the end point?
Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?
What is the role of mercuric sulphate?
How many electrons does benzene have?
Why is the role of glycerol & naoh?
Explain the structure of a dna molecule?
How is hardness of water caused?
In the calculation of calorific value of any fuel why the latent heat of vap. of water is taken as 587 kj/mol whereas actually it is 540kj/mol?
How are pka and strength of a weak acid related?
What happens when the excess of stannous chloride is not removed
why do hard water never produce foam when a soap is dissolved?
