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 bond between NH\(_3\) and H\(^+\) in NH4\(^+\) is?
dative
covalent
hydrogen
electrovalent
Correct answer is A
No explanation has been provided for this answer.
0.031
0.125
0.640
1.560
Correct answer is B
No explanation has been provided for this answer.
3.75 dm\(^3\)
7.59 dm\(^3\)
15.0 dm\(^3\)
30.0dm\(^3\)
Correct answer is C
1 mole of methane reacts with 2 moles of oxygen
1 vol of methane reacts with 2 vol of oxygen
: 7.5 vol of methane will yield 15 vol of oxygen in dm\(^3\)
3P
2P
\(frac{3}{2}\) P
\(frac{2}{3}\) P
Correct answer is C
No explanation has been provided for this answer.
0.004 mol dm(^-3\)
0.020 mol dm(^-3\)
0.200 mol dm(^-3\)
0.400 mol dm(^-3\)
Correct answer is A
 |
= | initial molarity |
 |
= | initial volume in liters |
 |
= | final molarity |
 |
= | final volume in liters |
0.200 X 5.00 = M\(_2\) X 250
M\(_2\) = 1 / 250
M\(_2\) = 0.004 mol dm(^-3\)