for a 10o rise in temperature, rate of reaction is double
for a 10 o rise in temperature, rate of reaction is halved
time taken for iodine to appear does not depend on temperature
for a 10 o rise in temperature rate of reaction is tripled
Correct answer is B
The iodine liberation process is significantly affected by the amount of acid, that of potassium iodide added, the waiting time for the liberation, and light; therefore, the process plays a key role for the accuracy of the titration results.
for a 10 o rise in temperature, rate of reaction is halved
A
B
C
D
Correct answer is A
lime juice reacts with NaCO3 with the evolution of CO2 because it is an acid while NaCO3 with ethanol does not result in a significant chemical reaction.
A
B
C
D
Correct answer is C
No explanation has been provided for this answer.
1.5
1.4
4.1
5.1
Correct answer is C
The ratio of permanent to temporary hardness will be 20:(20 - 15) = 20:5 = 4:1
SO2-OH -
K + and SO 4 2-
OH and HO
H3O + and K
Correct answer is A
No explanation has been provided for this answer.
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