Worksheets5A-QA7 (D9, Apr 1)
Total questions: 10
Worksheet time: 10mins
Consider the reaction between penta-1,4-diene and excess hydrogen iodide:
Which of the following statements concerning the reaction is INCORRECT?
One mole of penta-1,4-diene can react with two moles of HI.
The reaction is an addition reaction.
The reaction requires sunlight to proceed.
The major product of the reaction is a diiodoalkane.
Which of the following reactions can hexan-2-ol undergo?
(1) Substitution by HCl to give 2-chlorohexane.
(2) Dehydration to give hex-2-ene.
(3) Oxidation to give hexanoic acid.
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Which of the following reagents can be used to distinguish between CH3CH2COCH3 and CH3CH2CH2CHO?
dilute sodium hydroxide
sodium borohydride
acidified potassium dichromate solution
sodium carbonate solution
Which of the following statements concerning the reaction between ethanoic acid and propan-1-ol (in the presence of an acid catalyst) is correct?
The reaction is known as hydrolysis.
The product is propanoic acid.
Water is one of the products.
The reaction is irreversible.
Which of the following compounds can react with phosphorus trichloride (PCl3) ?
(1) CH3CH=CH2
(2) CH3CH2CH2OH
(3) CH3CH2COOH
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Which of the following reactions give(s) propanoic acid as one of the products?
(1) Oxidation of propan-2-ol
(2) Acid hydrolysis of ethyl propanoate
(3) Alkaline hydrolysis of propanamide
(1) only
(2) only
(1) and (3) only
(2) and (3) only
Consider the following compound:
Which of the following statements concerning the compound are correct?
(1) It exhibits cis-trans isomerism.
(2) It can be reduced by LiAlH4 in dry ether.
(3) It can undergo esterification
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Which of the following statements concerning the oxidation of ethanol to ethanoic acid by acidified potassium dichromate solution is INCORRECT ?
Ethanol is first oxidized to ethanal.
The reaction mixture should be heated under reflux for faster reaction.
The reaction mixture changes from orange to green.
In the whole process, each ethanol molecule loses four hydrogen atoms but gains one oxygen atom.
The structural formula of compound A is shown:
Which of the following compounds is the major product for the reduction of compound A by NaBH4 in water?
Consider the carbon compound as shown.
Which of the following statements about this compound is INCORRECT ?
It has the molecular formula of C8H8O3.
It can be reduced by sodium borohydride.
It can be oxidized by acidified potassium dichromate solution.
It exhibits enantiomerism.
