3 Which ester is commonly used as artificial flavor? A Ethyl ethanoate B Sodium ethanoate C Methanoic acid D Ethanol
4 Reaction of ethanoic acid with sodium hydroxide gives: A Sodium ethanoate and water B Sodium ethanol and water C Ethanol and sodium D Ethane and water
6 Which process forms polymers from monomers? A Hydrolysis B Neutralization C Polymerization D Oxidation
10 Which hydrogen atom is replaceable in carboxylic acids? A Hydrogen of alkyl group B Hydrogen of –OH group C Hydrogen of carbonyl group D All hydrogens
11 Carboxylic acids are used in food industry as: A Sweeteners B Preservatives C Coloring agents D Oxidizing agents
12 Which reaction confirms acidic nature of carboxylic acids? A Reaction with alcohol B Reaction with ester C Reaction with sodium bicarbonate D Reaction with aldehyde
13 Why are carboxylic acids acidic in nature? A Due to presence of –OH group only B Due to release of H+ from –COOH group C Due to presence of carbonyl group D Due to high molecular mass
14 Which factor increases the strength of polymers? A Short chains B Long chains C Low temperature D Low pressure
18 The process of ester formation is called: A Hydrogenation B Esterification C Saponification D Neutralization
20 Which reagent is commonly used for oxidation of ethanol to ethanoic acid? A KMnO4 B NaCl C HCl D NH3