Some Chemical Reactions MCQs with Answers

Carboxylic acids can be converted into acyl chlorides if they are treated with ?

• A.SOCl₂
• B.NaOH
• C.HCl
• D.NaHCO₃

What type of chemical reaction is rusting classified as?

• A.Reduction reaction
• B.Oxidation reaction
• C.Neutralization reaction
• D.Decomposition reaction

When 4 g of magnesium was heated in excess of oxygen, calculate the theoretical yield of magnesium oxide (MgO).

• A.6.6 g
• B.8.0 g
• C.4.0 g
• D.10.6 g

Identify the correct formula to calculate rate of reaction?

• A.Change in concentration of substance ÷ Time taken for the change
• B.Mass of product × Time taken for the reaction
• C.Volume of reactant ÷ Temperature of the reaction
• D.Pressure applied × Concentration of reactants

Formic acid reacts with ethanol in the presence of an acid catalyst and produces _?

• A.Ether
• B.Ketone
• C.Aldehyde
• D.Ester

The product of the reaction between an alcohol and a carboxylic acid is called ?

• A.Ether
• B.Ketone
• C.Aldehyde
• D.Ester

Which of the following alcohols will give an oily layer upon heating?

• A.Ethanol
• B.Methanol
• C.3-Methyl-2-butanol
• D.Propanol

The characteristics of reversible reaction is?

• A.It requires a catalyst to proceed
• B.It proceeds only in forward direction
• C.It stops after reaching equilibrium
• D.It can never proceed to completion

Aluminium burns in oxygen to form Aluminium oxide with a brilliant _?

• A.Green flame
• B.Blue flame
• C.Yellow flame
• D.White flame

Which of the following best describes an exothermic reaction?

• A.Absorbs heat from surroundings
• B.Releases heat into surroundings
• C.No heat change occurs
• D.Requires a catalyst to proceed