Stoichiometry Stoichiometry MCQS#Avogadro's Number36Choose the best answerHow many electrons are present in one mole of electrons?A1 electronB6.02 × 10²³ coulombsC6.02 × 10²³ electronsD1 gram of electrons Like 0 Discuss 0Share
Stoichiometry 11#Atomic Structure#Isobars37Choose the best answerWhich pair consists of isobars?A¹²C and ¹⁴NB¹⁶O and ¹⁸OC³⁵Cl and ³⁷ClD⁴⁰Ca and ⁴⁰Ar Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Formula Mass38Choose the best answerWhy is the term molecular mass not used for NaCl?ANaCl has a very large mass.BNaCl exists only in the solid state.CNaCl does not exist as discrete molecules; it exists as a lattice of ions.DSodium is a metal. Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Molecules and Compounds39Choose the best answerWhich statement about molecules and compounds is incorrect?AA molecule may contain atoms of the same element.BAn element can exist as molecules.CAll molecules are compounds.DA compound always contains more than one element. Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept40Choose the best answerWhich sample contains the greatest number of molecules?A5 mol CH₄B10 mol N₂C15 mol COD20 mol N₂O Like 11 Discuss 0Share