ElectrochemistrySalt Bridge226Choose the best answerThe main function of a salt bridge in a voltaic cell is to:ACarry electrons between electrodesBStop movement of ionsCMix both half-cell solutions completelyDAllow ion migration to maintain electrical neutrality Like 0 Discuss 0Share
GasesCharles's Law227Choose the best answerWhen a fixed amount of gas is heated at constant pressure, its volume:ADecreasesBRemains unchangedCIncreasesDBecomes zero Like 0 Discuss 0Share
Alcohols and PhenolsOxidation of Tertiary Alcohols228Choose the best answerUnder ordinary oxidation conditions, tertiary alcohols are:AEasily oxidized to aldehydesBEasily oxidized to ketonesCResistant to oxidationDDirectly converted into carboxylic acids Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Chemical Kinetics#Rate Law229Choose the best answerFor the elementary reaction aA + bB ⇌ cC + dD, the forward rate is:ARf = kf[C]ᶜ[D]ᵈBRf = kf[A]ᵃ[B]ᵇCRf = kr[A]ᵃ[B]ᵇDRf = kf[A][B] Like 0 Discuss 0Share
Carboxylic AcidsEffect of Substituents on Acidity of Benzoic Acid230Choose the best answerWhich substituent decreases the acidity of benzoic acid the most?A–NO₂B–ClC–CND–CH₃ Like 0 Discuss 0Share