1
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following alkanes does NOT exhibit structural isomerism?

A

Propane

B

Butane

C

Pentane

D

Hexane

2
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the volume occupied by a particle in simple cubic unit cell if the total volume of unit cell is $4.0 \times 10^{-23} \mathrm{~cm}^3$.

A

$1.5 \times 10^{-23} \mathrm{~cm}^3$

B

$2.9 \times 10^{-23} \mathrm{~cm}^3$

C

$2.1 \times 10^{-23} \mathrm{~cm}^3$

D

$3.7 \times 10^{-23} \mathrm{~cm}^3$

3
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following gas has high percentage by volume in air?

A

$\quad \mathrm{O}_2$

B

$\mathrm{N}_2$

C

$\quad \mathrm{CO}_2$

D

Ar

4
MHT CET (PCB) 2025 9th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

The rate law for the reaction, $x \mathrm{~A}+y \mathrm{~B} \longrightarrow \mathrm{mP}+\mathrm{nQ}$, is $\mathrm{r}=\mathrm{k}[\mathrm{A}]^{\mathrm{c}} \times[\mathrm{B}]^{\mathrm{d}}$ What is the overall order of reaction?

A

$(x+y)$

B

$(m+n)$

C

$(\mathrm{c}+\mathrm{d})$

D

$\frac{x}{y}$