Chemistry Which among the following coal contains 90 per cent of carbon? Peat Anthracite Lignite Bitumen Peat Anthracite Lignite Bitumen ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Sewer Sewage Sludge Scum Sewer Sewage Sludge Scum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of same element having different mass numbers are called________ Isomers Isobars Isotopes Isotones Isomers Isobars Isotopes Isotones ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 36 17 19 53 36 17 19 53 ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many electrons in a Hydrogen atom One Three Four Two One Three Four Two ANSWER DOWNLOAD EXAMIANS APP