Chemistry

Some basic concepts of chemistry mcq with explanation

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In the view of Competative exam Chemistry is considered to be the most scoring subject. This is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, Chemistry mcq concepts for any competitive exam. Chemistry demands the …

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Mole Concept Class 9 | Questions of mole Concept with answers

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The quantity of a substance that contains as many elementary entities, such as atoms, molecules ions or formula units as the number of atoms in exactly 12 g of C-12. In modern terms, gram-molecule and gram-atom are termed as a mole of molecules and a mole of atoms respectively e.g., 1 gram-molecule of oxygen and …

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