AP EAPCET (Engineering) Chemical Equilibrium and Acids-Bases — practice questions
18 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice AP EAPCET (Engineering) Chemical Equilibrium and Acids-Bases in the app →According to Le Chatelier's principle, a system at equilibrium that is disturbed will:Adding a catalyst to a reaction at equilibrium has what effect on the equilibrium composition?What happens to Kc of an exothermic reaction when the temperature is raised?For an endothermic reaction, raising the temperature causes the equilibrium constant to:When an equilibrium gas mixture is compressed, the equilibrium shifts toward the side with:Why is ammonia liquefied and removed during its industrial manufacture?According to Arrhenius, an acid is a substance that in water gives:In the Brönsted-Lowry concept, acids are:According to Lewis, an acid is a species that:Which species acts as a Lewis acid although it contains no proton?Which species can act as a Lewis base?Which scientist defined acids as electron pair acceptors in 1923?NH4+ has Ka = 5.6 × 10^-10 and NH3 has Kb = 1.8 × 10^-5. Their product is about:What is Ka of NH4+ (the conjugate acid of NH3), given Kb of NH3 = 1.8 × 10^-5?Down a group, as the size of A in H-A increases, the acid strength:For a polyprotic acid, how do Ka2 and Ka3 compare with Ka1?The pH of a salt of a weak acid and a weak base is given by:The degree of hydrolysis of a weak acid and weak base salt depends on its concentration: