1
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which functional group from following is considered as principal functional group if polyfunctional compound is to be named by IUPAC system?

A
$-$CHO
B
$-$OH
C
$-\mathrm{NH}_2$
D
$-\mathrm{C} \equiv \mathrm{C}-$
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the edge length of fcc unit cell if radius of metal atom is 139 pm .

A
$2.78 \times 10^{-8} \mathrm{~cm}$
B
$3.21 \times 10^{-8} \mathrm{~cm}$
C
$3.93 \times 10^{-8} \mathrm{~cm}$
D
$6.95 \times 10^{-8} \mathrm{~cm}$
3
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following techniques is used for preliminary confirmation of nanoparticles?

A
UV-visible spectroscopy
B
X ray diffraction
C
Scanning electron microscopy
D
Transmission electron microscopy
4
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the value of pOH if a buffer solution is prepared by mixing equal volumes of $0.4 \mathrm{~M} \mathrm{~NH}_4 \mathrm{OH}$ and $0.5 \mathrm{~M} \mathrm{~NH}_4 \mathrm{Cl}$ solutions. $\left(\mathrm{pK}_{\mathrm{b}}=4.730\right)$

A
6.0
B
4.83
C
10.42
D
7.81
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