Which of the following is called Aurum?
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Biogas is produced from biomass by
Ammonium nitrate, on thermal decomposition, produces :
Which of the following is not a greenhouse gas?
In the following gases, which is not a colorless or odourless gas?
15% of an alloy was silver. If in a quantity of alloy there was 51 g of silver, what was the quantity of the other elements in the alloy?
Acid Rain has pH value of
What is the process of slow cooling of hot glass called?