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.
2-methylprop-1-ene is an isomer of?
3-methyl but-1-ene
2-methyl but-1-ene
but-2-ene
pent-2-ene
Correct answer is C
somers of Butene: are But-1-ene, But-2-ene, 2-Methylpropene / 2-methylprop-1-ene
C6H6
C4H10
C5H10
C4H6
Correct answer is D
CxHy + (x + y/4)O2 → x CO2 + y/2 H2O
89.6 dm3 → x moles CO2
22.4 dm3 → 1 mole CO2
x = 89.622.4
= 4 moles CO2
54g of H2O → k moles H2O
18g H2O → 1 mole H2O
k = 5418
= 3 moles H2O
From the equation above,
x = 4
k = y/2 = 3
y/2 = 3 ⟹ y = 6
∴ The hydrocarbon C_xH_y = C_4H_6
The IUPAC name for CH_3CH_2COOCH_2CH_3 is
methylpropanoate
ethylethanoate
ethylpropanoate
methylethanoate
Correct answer is C
No explanation has been provided for this answer.
Which of the following will give a precipitate with an aqueous solution of copper (I) chloride?
But-2-ene
But-1-ene
But-2-yne
But-1-yne
Correct answer is D
No explanation has been provided for this answer.
A secondary alkanol can be oxidized to give an?
alkanone
alkyne
alkanoic acid
alkanal
Correct answer is A
Secondary alkanols (alcohols) can be oxidised to alkanones (ketones)