Stoichiometry#Atomic Structure#Isotopes2841Choose the best answerCarbon-12, carbon-13 and carbon-14 differ in their number of:ANumber of electronsBNumber of protonsCNumber of neutronsDNuclear charge Like 0 Discuss 0Share
Chemistry of HydrocarbonsStability of Alkanes2842Choose the best answerThe increasing order of stability among the isomers of pentane is:ANeopentane < Isopentane < n-PentaneBn-Pentane < Isopentane < NeopentaneCIsopentane < n-Pentane < NeopentaneDn-Pentane < Neopentane < Isopentane Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCoal and Types of Coal2843Choose the best answerThe correct order of increasing carbon content in coal is:APeat < Lignite < Bituminous < AnthraciteBLignite < Peat < Bituminous < AnthraciteCPeat < Bituminous < Lignite < AnthraciteDAnthracite < Bituminous < Lignite < Peat Like 0 Discuss 0Share
StoichiometryMolar Volume at STP2844Choose the best answerThe conventional molar volume of 22.4 dm³ mol⁻¹ corresponds to:A0°C and 1 atmB273°C and 1 atmC0°C and 273 atmD273 K and 273 atm Like 0 Discuss 0Share
GasesElastic Collisions2845Choose the best answerCollisions between ideal-gas molecules are considered:AInelastic with loss of kinetic energyBElastic with no net loss of kinetic energyCPartially elasticDCompletely attractive Like 0 Discuss 0Share