1
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
In a first order reaction 20 millimole of reactant is lowered to 10 millimole in $0.3010$ minute. Find rate constant of the reaction?
A
$3.010\ \text{minute}^{-1}$
B
$0.602\ \text{minute}^{-1}$
C
$2.303\ \text{minute}^{-1}$
D
$0.301\ \text{minute}^{-1}$
2
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
For the reaction $2\text{NOBr}_{(g)} \longrightarrow 2\text{NO}_{(g)} + \text{Br}_{2(g)}$, rate law is $r = k[\text{NOBr}]^2$. Rate constant is $1.62\ \text{M s}^{-1}$ and concentration of NOBr is $5 \times 10^{-3}\ \text{M}$,
What is rate of reaction?
A
$4.05 \times 10^{-5}\ \text{M s}^{-1}$
B
$6.48 \times 10^{-6}\ \text{M s}^{-1}$
C
$2.12 \times 10^{-5}\ \text{M s}^{-1}$
D
$8.63 \times 10^{-6}\ \text{M s}^{-1}$
3
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following reactions has of overall order $1.5$ ?
A
$2\text{H}_2\text{O}_{2(g)} \longrightarrow 2\text{H}_2\text{O}_{(\ell)} + \text{O}_{2(g)}$
B
$\text{H}_{2(g)} + \text{I}_{2(g)} \longrightarrow 2\text{HI}_{(g)}$
C
$\text{CH}_3\text{CHO}_{(g)} \longrightarrow \text{CH}_{4(g)} + \text{CO}_{(g)}$
D
$2\text{NO}_{(g)} + 2\text{H}_{2(g)} \longrightarrow \text{N}_{2(g)} + 2\text{H}_2\text{O}_{(\ell)}$
4
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which from following anions has greater power for coagulation of positive sol?
A
$\text{Cl}^-$
B
$[\text{Fe(CN)}_6]^{4-}$
C
$\text{PO}_4^{2-}$
D
$\text{SO}_4^{2-}$

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