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.
In the diagram above, the mixture of the solids P and Q can be separated by?
distillation
fractional distillation
crystallization
fractional crystallization
Correct answer is D
The process involves a series of repeated-crystallizations.
Use the table above to answer this question .The least reactive element is
W
X
Y
Z
Correct answer is D
No explanation has been provided for this answer.
Z
Y
X
W
Correct answer is C
the element likely to participate in covalent rather than ionic bonding is X, covalent bonding is a type of bonding that involves the participants contributing an equal number of electrons into a shared pair.
In the diagram above, Y is a mixture of
calcium hydroxide and ammonium chloride
calcuim hydroxide and sodium chloride
sodium chloride and ammonuim trioxonitrate (V)
sodium dioxonitrate (lll) and ammouium chloride
Correct answer is A
No explanation has been provided for this answer.
117.00 g
58.50 g
11.70 g
5.85 g
Correct answer is A
No explanation has been provided for this answer.