The correct spelling is-unprecedented
Which element dominates the Earth's crust by percentage?
Potassium Permanganate is used for purifying drinking water, because it –
The slow corrosion of iron in the presence of moist air is known as:
Which of the following is true about Helium?
The first nuclear reactor made in India is named:
What causes the black color of Black Soil?
Which mineral is the ore Of aluminium ?
Lexan is a man-made polymer used for making
Which gas is most abundant in the Earth's atmosphere.
Match the following gases with their typical uses:
List I (Gas) List II (Uses)
A) A...