Any whole number greater than 1 that is divisible only by 1 and itself, is defined as a prime number. For example, 7 has only 2 factors, 1 and 7 itself. So, it is a prime number. However, 4 has three factors, 1, 2 and 4. Therefore, it is not a prime number. It is a composite number.
Ultra-purification of metals is achieved using:
Which method is employed to separate minor quantities of multiple dissolved solids in a solution?
Which fossil fuel is formed under earth by the decomposition of vegetable matter lying under water by anaerobic bacteria in the absence of oxygen?
_____________ has the maximum attraction force between the molecules.
Which of the following reactions is a displacement reaction?
Which element is known as the 'King of Chemicals.
What is the common chemical used in blood banks as an anticoagulant and preservative?
A substance X turns the colour of red litmus blue, and it will change methyl orange-
Which of the following gas is used to fill balloons.
Which of the following is not the Ore of Aluminium?
