Which of the following processes has ΔS<0 ?Select one:Dry ice sublimes.4NH3(g) 5O2(g)→4NO(g) 6H2O(g)H2O(I)→H2O(g)Pb2 (aq) 2F-
Answer Entropy Change (ΔS) Analysis body { font-family: 'Segoe UI', sans-serif; background-color: #f7fafd; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff; border-l
A polymer obtained from a radical polymerisation that is designed to have high rigid strength properties is likely to have…No interactions between
Answer Rigid Polymer Properties - Radical Polymerization body { font-family: 'Segoe UI', sans-serif; background-color: #f9fafd; padding: 40px; color: #2c3e50; } .card { background-color: #f
Explain the effects of heat, water, acid, alkali and metals on carotenoids
Answer Effects on Carotenoids body { font-family: 'Segoe UI', sans-serif; background-color: #f4f9fb; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff; border-left: 6px
A hemiacetalQuestion 4 options:None of theseIs formed from esters with one equivalent of an alcohol under acidic conditionsIs the result of the
Answer Hemiacetal Formation Explained body { font-family: 'Segoe UI', sans-serif; background-color: #f9fafd; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff; border-lef
Halogen atoms on a benzene ring…Question 2 options:Are meta directorsAre deactivating groupsAre activating groupsAre ortho/para
Answer Halogens on Benzene Ring - EAS Behavior body { font-family: 'Segoe UI', sans-serif; background-color: #f8fbff; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff; b
Which of the following pairs shows the correct relative magnitude of standard molar entropy (S°) ? All systems are for the same amount of substance
Answer Standard Molar Entropy Comparison body { font-family: 'Segoe UI', sans-serif; background-color: #f8faff; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff; bor
Write the formulas of the following compounds. Magnesium sulfate (Epsom salt) Zinc oxideAluminum hydroxide Lithium bromideAmmonium
Answer Chemical Formulas of Common Compounds body { font-family: 'Segoe UI', sans-serif; background-color: #f4f9fb; padding: 40px; color: #2c3e50; } .compound { background-color: #ffffff;
In a radical polymerisation the shift in having the radical at the end of the growing chain to somewhere else along the chain during the reaction is
Answer Radical Polymerization: Chain-End Radical Shift body { font-family: 'Segoe UI', sans-serif; background-color: #f9f9fc; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff;
A chemical reaction has an activation energy of 44.422kJmol and its initial (forward) reaction rate has been determined at 25°
Answer Reaction Rate Change with Temperature body { font-family: 'Segoe UI', sans-serif; background-color: #f4f9fb; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff;
Which of the following cannot be made directly from a simple electrophilic aromatic substitution reaction with benzene?Question 3
Answer Electrophilic Aromatic Substitution - Analysis body { font-family: 'Segoe UI', sans-serif; background-color: #f4f9fb; padding: 40px; color: #2c3e50; } .card { background-color: #ffffff;