The common name of sodium tetraborate decahydrate is _____.
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Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
The oceanic crust mainly consists of silica and __________.
Soft drinks contain:
Give an example of a salt which gives an aqueous solution of pH less than 7.
What is nature of pH of Milk?
Which of the following is the best fire-extinguisher?
Which of the following green house gases has the greatest heat-trapping ability?
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