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.
teflon
isoprene
polythene
neoprene
Correct answer is D
No explanation has been provided for this answer.
The final product of the reaction of ethyne with hydrogen iodine is?
CH3—CHI2
CH2l—CH2I
CH3—CI3
CH2 = CHI
Correct answer is A
1,1-Diiodoethane ( CH3-CHI2 ) is a product of this reaction
alkanal
alkanoate
alkanone
alkyne
Correct answer is B
No explanation has been provided for this answer.
An undesirable paraffin in the petroleum industry which is particularly prone to knocking is?
iso-octane
n-heptane
iso-heptane
n-octane
Correct answer is B
No explanation has been provided for this answer.
CH3
CH2
CH4
C2H24
Correct answer is A
CxHy + (x + y/4)O2 = XCO2 + (y/2)H2O
4.4 2.7
according to the equation 44x = 9y
Carbon Hydrogen
mole given ratio = (44)/(44), (2.7)/(9) = 0.1,0.3
Empirical formula = (0.1)/(0.1), (0.3)/(o.1) = 1,3 ; CH3