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

Which of the following is an example of heterogenous catalysis?

A
Oxidation of $\mathrm{SO}_{2(\mathrm{~g})}$ in presence of $\mathrm{NO}_{(\mathrm{g})}$.
B
  Decomposition of aqueous $\mathrm{H}_2 \mathrm{O}_2$ in presence of $\mathrm{I}_{(\mathrm{aq})}^{-}$.
C
Hydrolysis of sugar in presence of aq. $\mathrm{H}_2 \mathrm{SO}_4$.
D
Hydrogenation of vegetable oil in presence of $\mathrm{Ni}_{(\mathrm{s})}$.
2
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
3
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following gases is readily adsorbed by solid adsorbent?

A
$$\mathrm{Cl}_2$$
B
$$\mathrm{N}_2$$
C
$$\mathrm{O}_2$$
D
$$\mathrm{H}_2$$
4
MHT CET 2023 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following ion has greater coagulating power for negatively charged sol?

A
$$\mathrm{Fe}(\mathrm{CN})_6^4$$
B
$$\mathrm{PO}_4^{3-}$$
C
$$\mathrm{Ba}^{2+}$$
D
$$\mathrm{Al}^{3+}$$
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