1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

$A(g) \longrightarrow B(g)$ is a first order reaction. The initial concentration of $A$ is $0.2 \mathrm{~mol} \mathrm{~L}^{-1}$. After 10 minutes the concentration of $B$ is found to be $0.18 \mathrm{~mol} \mathrm{~L}^{-1}$. The rate constant (in $\min ^{-1}$ ) for the reaction is

A
$0.2303 \mathrm{~min}^{-1}$
B
$2.303 \mathrm{~min}^{-1}$
C
$0.693 \mathrm{~min}^{-1}$
D
$0.01 \mathrm{~min}^{-1}$
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

Methyl acetate and ethyl acetate can be distinguished by

A
$\mathrm{Not} ~\mathrm{KMnO}_4$ solution
B
neutral $\mathrm{FeCl}_3$
C
iodoform test
D
None of the above
3
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

Which of the following pairs form the same osazone?

A
Glucose and fructose
B
Glucose and galactose
C
Glucose and arabinose
D
Lactose and maltose
4
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

Ozone is determined quantitatively by first reacting it with excess of KI at a particular pH and then titrating the $\mathrm{I}_2$ thus, liberated with a suitable titrant. The pH of the reaction and the titrant used in the titration are respectively.

A
$6, \mathrm{~K}_2 \mathrm{Cr}_2 \mathrm{O}_7$
B
$9.2, \mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_3$
C
$6, \mathrm{Na}_2 \mathrm{~S}_2 \mathrm{O}_3$
D
$9.2, \mathrm{KMnO}_4$
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