What are the products formed after cod analysis?
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How is the accuracy of the method determined?
why do hard water never produce foam when a soap is dissolved?
Which wavelengths are visible to human eye?
Why is the total eclipse of the earth a rare phenomenon ?
Why is acetic acid added?
What is soot or lamp black ?
If the stopper if a bottle has stuck, sometimes it may be removed by heating the neck, why ?
Why is mercuric chloride added?
when we covert any substance into vapour state from solid state, is it ionized or not?
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 colour of diamond, when pure ?
What causes smoke to curl up into the air ?