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

$60 \%$ of a first order reaction is completed in 60 minute. What is the time taken by reactant to decompose half of its original amount?

A

30.6 minute

B

20.2 minute

C

45.3 minute

D

60.1 minute

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

The osmotic pressure of equimolar concentration of $\mathrm{CaCl}_2$ and urea at same temperature are 0.6 atm and 0.25 atm respectively. Calculate van't Hoff factor for $\mathrm{CaCl}_2$.

A

2.0

B

2.4

C

2.7

D

3.0

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

Which from following is an example of intensive property?

A

Density

B

Mass

C

Internal energy

D

Number of moles

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

What is EAN of Mn in $\mathrm{Mn}(\mathrm{CO})_5$ ?

A

35

B

36

C

34

D

37