Which of the following substances would not produce ethanol when fermented?
Cane sugar
Glucose
Starch
Vinegar
Correct answer is D
Vinegar is a product from fermentation. It can be gotten from the fermentation of ethanol.
cracking
fermentation
polymerization
reforming
Correct answer is A
In the reaction, a complex hydrocarbon is broken down into two simpler hydrocarbons. This is cracking.
The oxidation number of Fe in [Fe(CN)\(_6\)]\(^{3-}\) is
+3
+2
-2
-3
Correct answer is A
Let the oxidation number of Fe in the compound [Fe(CN)\(_6\)]\(^{3-}\) be x.
x + 6(-1) = -3
x - 6 = -3;
x = -3 + 6
x = +3
l and lll only
ll and lll only
l and ll only
l, ll and lll
Correct answer is C
No explanation has been provided for this answer.
Particle size of CuO(s)
Concentration of H2SO4(aq)
Temperature of the reacting mixture
Pressure of reaction system
Correct answer is D
The reaction rate between a solid and liquid will not be affected by pressure. Pressure majorly affects the reaction rate for gases.