Question 23
Question 23 of 40
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Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
16. Hydroxy compounds
16.1. Alcohols

recall the reactions (reagents and conditions) by which alcohols can be produced: (a) electrophilic addition of steam to an alkene, \( H_2O(g) \) and \( H_3PO_4 \) catalyst (b) reaction of alkenes with cold dilute acidified potassium manganate(VII) to form a diol (c) substitution of a halogenoalkane using NaOH(aq) and heat (d) reduction of an aldehyde or ketone using NaB\(_4\) or LiAl\(_4\) (e) reduction of a carboxylic acid using LiAl\(_4\) (f) hydrolysis of an ester using dilute acid or dilute alkali and heat

18. Carboxylic acids and...
18.2. Esters

recall the reaction (reagents and conditions) by which esters can be produced: (a) the condensation reaction between an alcohol and a carboxylic acid with concentrated \( H_2SO_4 \) as catalyst