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.
The number of isomers formed by C6H14 is
4
5
2
3
Correct answer is B
The number of isomers C6H14 cm is 5. it will not form options A,C, D
In the above reaction, the oxidation number of Cu changes from ___ to _______?
+1 to 0
0 to +2
+2 to +1
0 to +1
Correct answer is A
The oxidation number is from +1 to O as a result of the release of sulphur. Options B, C, and D are not the actual oxidation number for copper
All these are electromagnetic waves except
White light
Photon
X-ray
Infrared
Correct answer is B
Photon is unit of energy that carries light and has zero mass A, C and D are all electromagnetic waves of higher mass
Which of these radioactive elements is commonly used as a nuclear fuel
uranium
palladium
actium
thorium
Correct answer is A
Uranium is common nuclear because of its less stability as a result has a great tendency to increase energy than. Options B,C,D which are not stable
A major source of oxide of nitrogen is from the burning of
coal
wood
fuel
chlorofluorocarbons
Correct answer is C
No explanation has been provided for this answer.