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.
What is the IUPAC name for the following compound? HC\(\equiv\)CCH\(_{3}\)
Acetylene
Methyl acetylene
Butanol
Decanoic acid
Correct answer is B
Propyne (methylacetylene) is an alkyne with the chemical formula HC\(\equiv\)CCH\(_{3}\)
The scientist who stated that matter can be converted into energy is?
Boyle
Lavoiser
Avogadro
Einstein
Correct answer is D
The principle described by the physicist Albert Einstein's famous formula: E = mc^2, involves mass–energy equivalence.
I.e. the relationship between mass and energy.
The enzyme that converts glucose to ethyl alcohol is?
maltase
zymase
Diatase
Invertase
Correct answer is B
Zymase is an enzyme complex that catalyzes the fermentation of sugar into ethanol and carbon dioxide. It occurs naturally in yeasts.
Give the common name for the following compound (CH\(_{3}\))\(_{2}\) CH CH\(_{2}\) -Br
Isobutyl bromide
Methyl bromide
propyl bromide
Butyl bromide
Correct answer is A
Common name : Isobutyl bromide
IUPAC name : 1-Bromo-2-methylpropane
Boiling point : 102°C
Formula : C\(_4\)H\(_9\)Br
An example of a biodegradable pollutant is?
plastic
sewage
carbon (II) oxide
hydrogen sulphide
Correct answer is B
examples of biodegradable
- Glass, metals, electronic devices, computer parts, batteries, medical waste, plastic bags, plastic bottles, tetra packs, and carbon paper are a few examples of non- biodegradable materials.