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.
32.4cm 3
55.7cm3
64.6cm3
111.1cm3
Correct answer is C
V1 = 60cm
T2 = 273 + 50 = 323KV2 = ?
V1/T1 = V2/T2 .: V2 = V1T 2/T1 = 60 x 323/300 = 19380/300 = 64.6cm3
Fractional distillation
Paper chromatography
Coagulation
Recrystallization
Correct answer is B
No explanation has been provided for this answer.
l and ll only
l, ll and lll only
l and lll only
l, II, lll and IV only
Correct answer is D
The factors that affect reaction rates are:
WHICH OF THE FOLLOWING SALTS IS READILY SOLUBLE IN WATER?
PbCI2
Pb(NO 3) 2
PbSO4
PbCO 3
Correct answer is B
No explanation has been provided for this answer.
HNO3 and NaOH
H2SO4 and KOH
HCI and Mg(OH) 2
HNO 3 and KOH
Correct answer is C
No explanation has been provided for this answer.