SolidsElectrical Conductivity of Ionic Solids2901Choose the best answerIonic solids do not conduct electricity in the solid state mainly because:AThey contain no ionsBTheir ions are fixed in the crystal latticeCThey have high densityDThey are always insoluble Like 0 Discuss 0Share
Chemical EquilibriumDynamic Equilibrium2902Choose the best answerA chemical reaction is at equilibrium when:AAll reactants have been converted into productsBForward and backward reaction rates are equalCProduct formation has completely stoppedDReactant and product concentrations are equal Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemistry of Hydrocarbons#Wurtz Reaction2903Choose the best answerQ.81 2-chloropropane is heated with Na metal, product is 2,3-dimethylbutane. Reaction is:ADehydrohalogenationBWurtz reactionCDehydrationDCatalytic dehydrogenation Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Mole Concept#Stoichiometry2904Choose 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
Aldehydes and KetonesAlpha Hydrogen in Aldehydes2905Choose the best answerIn which aldehydes are α-hydrogen atoms absent? (1) Methanal (2) Ethanal (3) Benzaldehyde (4) 2,2-DimethylpropanalA1 and 3 onlyB1, 3 and 4 onlyC2 and 4 onlyD1 and 2 only Like 0 Discuss 0Share