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.
Beryllium and Aluminium have similar properties because they
are both metals
belong to the same group
belong to the same period
are positioned diagonally to each other
Correct answer is A
No explanation has been provided for this answer.
carbon-14
phosphorus-32
cobalt-60
iodine-131
Correct answer is C
No explanation has been provided for this answer.
How many atoms are present in 6.0g of magnesium? [Mg = 24, N.A = 6.02 x 10 \(^{23}\)mol]
1.20 x 10\(^{22}\)
2.4 x 10\(^{22}\)
1.51 x 10\(^{22}\)
3.02 x 10\(^{22}\)
Correct answer is C
No explanation has been provided for this answer.
0.40 moldm\(^{-3}\)
0.50 moldm\(^{-3}\)
0.05 moldm\(^{-3}\)
0.30 moldm\(^{-3}\)
Correct answer is B
No explanation has been provided for this answer.
Zn
Ca
Al
Pb
Correct answer is A
No explanation has been provided for this answer.