The green colour of the leaves is due to-
What term is used for atoms that have the same number of protons but different numbers of neutrons?
Which device converts sound waves to electrical signals?
Which of the following is considered an antiknock compound?
Pentane has _____ structural isomers.
Which of the following metals is the lightest in the periodic table of elements?
In the vulcanization process, natural rubber is heated with which element to enhance its properties?
Identify the strong acid from the list below:
What is the gas ‘Xenon’ also known as?
______is used to coat Galvanised Iron.