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

At 298 K pH of a solution is 13 . What is the number of $\mathrm{H}_3 \mathrm{O}^{+}$ions present in one mL of this solution?

A

$6.022 \times 10^7$

B

$5.020 \times 10^8$

C

$7.022 \times 10^{13}$

D

$1 \times 10^{13}$

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

Which of the following compounds has highest boiling point?

A

1-Bromobutane

B

1-Bromo-2-methylpropane

C

2-Bromobutane

D

2-Bromo-2-methylpropane

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

Identify the ligands present Pentaamminecarbonatocobalt(III)chloride.

A

$\mathrm{NH}_3$ and $\mathrm{Cl}^{-}$

B

$\mathrm{Cl}^{-}$and $\mathrm{CO}_3^{--}$

C

$\mathrm{CO}_3^{--}$and $\mathrm{NH}_3$

D

$\mathrm{NH}_3, \mathrm{CO}_3^{--}$and $\mathrm{Cl}^{-}$

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

Identify zero-dimensional nanostructure from examples given below.

A

Nanotubes

B

Fibres

C

Nanowires

D

Quantum dot