XiMDCAT XI Complete Chemistry Grand Test#Mole Concept#Stoichiometry41Choose the best answerWhich gas sample contains the same total number of atoms as 1 g of H₂?A22 g of CO₂B8 g of CH₄C20 g of NeD8 g of O₃ Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Mole Concept#Stoichiometry42Choose the best answerHow many atoms are present in 0.1 mol of a triatomic gas?A6.02 × 10²³B1.204 × 10²³C1.806 × 10²³D1.806 × 10²⁴ Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Chemical Bonding#Sigma and Pi Bonds43Choose the best answerAn sp²-hybridized carbon forms which combination of σ and π bonds?A4 π bondsB2 π bonds and 2 σ bondsC1 π bond and 3 σ bondsD4 σ bonds Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Gas Density#Gases44Choose the best answerAt which condition is the density of O₂ greatest?ASTPB273 K and 2 atmC546 K and 1 atmD546 K and 2 atm Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Anomalous Expansion of Water#Liquids45Choose the best answerWhen water freezes, its volume changes by about ___ and its density ___.A9%, increasesB12%, decreasesC9%, decreasesD12%, increases Like 0 Discuss 0Share