Question 171
In a chemical equilibrium, what happens if the concentration of a reactant is increased?EquilibriumEquilibriummedium
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WAEC Chemistry – Liberia
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Question 172
In the reaction Zn + Cu^2+ → Zn^2+ + Cu, which species is oxidized?Redox reactionsRedox reactionsmedium
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Question 173
Which organic compound contains a carbonyl group bonded to at least one hydrogen atom?Organic chemistryOrganic chemistrymedium
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Question 174
Which of the following quantum numbers describes the shape of an electron's orbital?Atomic structure and quantum numbersAtomic structure and quantum numberseasy
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Question 175
Which of the following explains why metals generally have high melting points?Structure and properties of matterStructure and properties of mattermedium
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Question 176
Which factor does NOT increase the rate of a chemical reaction?Rates of reactions (kinetics)Rates of reactionseasy
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Question 177
What is the pH of a solution with a hydrogen ion concentration of 1.0 × 10^-3 mol/dm³?Acids, bases, saltsAcids, bases, saltseasy
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Question 178
In a redox reaction, what happens to the substance that is oxidized?Redox reactionsRedox reactionseasy
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Question 179
Which of the following is the main purpose of an electrochemical cell?ElectrochemistryElectrochemistrymedium
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Question 180
What type of polymerization involves the repeated addition of monomers with double bonds without the loss of small molecules?Polymer chemistryPolymer chemistrymedium
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