Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
Sugars can be hydrolyzed at room temperature by the action of
mineral acids
strong bases
enzymes
oxidants
Correct answer is C
Simple sugar molecules (monosaccharide ) when combined to form larger molecules (dissacharides or polysaccharides) is called condenation , water molecules is generated in the process, the reverse process is known as hydrolysis. sugar can be hydrolyszed at room temperature by the action of enzymes.
Which of the following constitutes an advantage in the use of hard water?
Formation of scum with soap
Furring of kettles
Blockage of water pipes
Formation of strong bones
Correct answer is D
No explanation has been provided for this answer.
What is the function of H2SO4 in the following reaction? C12
H22O11 conc. H24 12C + 11H2O
Oxidizing agent
Strong acid
Dehydrating agent
Catalyst
Correct answer is C
No explanation has been provided for this answer.
Which of the following polymers contains nitrogen?
Nylon
Polyvinyl chloride
Polyethene
Cellulose
Correct answer is A
No explanation has been provided for this answer.
One of the products of combustion of pentane in excess air is
pentanol
pentene
nitrogen (ll) oxide
carbon (IV) oxide
Correct answer is D
No explanation has been provided for this answer.