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Recently, scientists looking for fossil fuels beneath the ground of northeastern France have discovered large reservoir of white hydrogen. White hydrogen is also referred to as “natural,” “gold” or “geologic” hydrogen. It causes no CO2 emissions when used as a fuel
How can a mixture of sand and salt be separated?
Biofertilizers convert nitrogen to:
The washing machine works on the principle of -
Which of the following does not give effervescence with sodium carbonate?
Anions are formed through which process?
The insecticide gammexane is chemically known as:
Absolute alcohol is prepared from rectified spirit by using the following process :
In the synthesis of aspirin (acetylsalicylic acid) from salicylic acid, which reagent is used?
The motion of an object under free fall is an example of which of the following?
Which type of wave does not require a medium for propagation?
