JEE Chemistry Some Basic Concepts Of Chemistry MCQs Set B
Question: The mass of 1 mole of electrons is a) 0.55 mg b) 9.1 × 10–28g c) 1.008 mg d) 9.1 × 10–27 g Answer: 0.55 mg Question: 10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water…
JEE Chemistry Some Basic Concepts Of Chemistry MCQs Set A
Question: A mixture of sand and iodine can be separated by a) sublimation b) crystallisation c) distillation d) fractionation Answer: sublimation Question: Difference in density is the basis of a) gravity separation b)…