वाक्य के अनुरूप यही सबसे सही विकल्प हैं
Ultra-purification of metals is achieved using:
What is the primary purpose of using bleaching powder in drinking water?
Protons were discovered by
The green colour of the leaves is due to-
Pentane has _____ structural isomers.
______is used to coat Galvanised Iron.
Identify the element with the electronic configuration of 2, 8, 7.
Whitening of hair is caused by the deficiency of _________?
Petroleum is a mixture of-
What term is used for atoms that have the same number of protons but different numbers of neutrons?
