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.
X only
Y only
Z only
X and Z
Y and Z
Correct answer is E
No explanation has been provided for this answer.
basic lead carbonate
lead (II) nitrate
sodium carbonate
zinc nitrate
sodium nitrate
Correct answer is B
Lead nitrate reacts with ammonium hydroxide solution to form a white precipitate. This white precipitate does not dissolve in excess ammonium hydroxide.
T
W
X
Y
Z
Correct answer is D
Y = 19 protons, 19 electrons and 20 neutrons.
Y has electronic configuration 2, 8, 8, 1. Hence, it has one valence electron in the outer shell (Valency of +1).
Mass number = protons + neutrons
= 19 + 20
= 39.
with conc H2SO4 as catalyst
CH3COOH + C2H5OH → CH3COOC2H5 + H2O
esterification
Condensation
saponification
neutralization
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements is true about 2-methylpropane and butane
They are not members of the same homologous series
They have the same boiling point
They have different number of carbon atoms
They have the same chemical properties
Correct answer is D
No explanation has been provided for this answer.
