A. an hydrous CaCl4
B. concentrated NaCO4
C. dilute NaOH
D. concentrated H2SO4
Correct Answer:
Option D – concentrated H2SO4
Explanation
Esters are produced when carboxylic acids are heated with alcohol in the presence of an acid catalyst. The catalyst is usually concentrated sulphuric acid
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![A quantity of hot water at 100ºC is added to 400g of water at 10ºC until the temperature of the mixture is 60ºC. Calculate the mass of the hot water added. [Specific heat capacity of water =4200JKg-1 K-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A quantity of hot water at 100ºC is added to 400g of water at 10ºC until the temperature of the mixture is 60ºC. Calculate the mass of the hot water added. [Specific heat capacity of water =4200JKg-1 K-1]")