1
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following dopant is added in silicon to obtain n-type semiconductor?

A

As

B

B

C

Ga

D

In

2
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is an example of an intensive property of the system?

A

Volume

B

Enthalpy

C

Entropy

D

Molar volume

3
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of hydrogen atoms present in 5.4 g of urea?

A

$9.011 \times 10^{23}$

B

$6.022 \times 10^{23}$

C

$2.168 \times 10^{23}$

D

$3.011 \times 10^{23}$

4
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the order of reactivity of alkyl halides with ammonia?

A

$\mathrm{R}-\mathrm{Cl}>\mathrm{R}-\mathrm{Br}>\mathrm{R}-\mathrm{I}$

B

$\mathrm{R}-\mathrm{Br}>\mathrm{R}-\mathrm{I}>\mathrm{R}-\mathrm{Cl}$

C

$\mathrm{R}-\mathrm{I}>\mathrm{R}-\mathrm{Br}>\mathrm{R}-\mathrm{Cl}$

D

$\mathrm{R}-\mathrm{Cl}>\mathrm{R}-\mathrm{I}>\mathrm{R}-\mathrm{Br}$

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