One of the products of combustion of pentane in excess air is
pentanol
pentene
nitrogen (ll) oxide
carbon (IV) oxide
Correct answer is D
No explanation has been provided for this answer.
Benzene produces more soot than ethene on burning because benzene
has a higher molar mass
has a higher degree off unsaturation
undergoes substitution and addition reaactions
is a liquid at room temperature
Correct answer is A
No explanation has been provided for this answer.
Hydrogenation of butene yields
butyne
butane
pentence
butanol
Correct answer is B
No explanation has been provided for this answer.
- 1.1V
- 0.42V
+0.42V
+1.1V
Correct answer is D
e.m.f. = + 0.34 -(-0.76) = 0.34 + 0.76 = +1.1V
In the electrolysis of CuSO4(aq) using copper electrodes, the reaction at the anode is
discharge of SOsub>4 2-
discharge of OH-
dissolution of copper electrode
evolution of oxygen
Correct answer is C
No explanation has been provided for this answer.