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

What is momentum of a microscopic particle having de Broglie's wavelength 6.0 A?

$$\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)$$

A
$4.6 \times 10^{-24} \mathrm{~kg} \mathrm{~ms}^{-1}$
B
$1.1 \times 10^{-24} \mathrm{~kg} \mathrm{~ms}^{-1}$
C
$3.18 \times 10^{-24} \mathrm{~kg} \mathrm{~ms}^{-1}$
D
$6.36 \times 10^{-24} \mathrm{~kg} \mathrm{~ms}^{-1}$
2
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following species acts as base ${ }^1$, according to Bronsted-Lowry theory?

$$\mathrm{HCl}+\mathrm{NH}_3 \text { 目的 } \mathrm{NH}_4^{+}+\mathrm{Cl}^{-} $$

A
$\mathrm{Cl}^{-}$
B
$\mathrm{NH}_3$
C
$\mathrm{NH}_4^{+}$
D
$\mathrm{HCl}$
3
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following reactions represents Clemmensen reduction?

A
MHT CET 2024 2nd May Evening Shift Chemistry - Aldehyde and Ketone Question 32 English Option 1
B
$\mathrm{R}-\mathrm{CN} \xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\mathrm{SnCl}_2, \mathrm{HCl}} \mathrm{R}-\mathrm{CHO}+\mathrm{NH}_4 \mathrm{Cl}$
C
$\mathrm{R}-\mathrm{CHO} \xrightarrow[\Delta]{\mathrm{Zn} -\mathrm{Hg} \cdot \text { conc HCl }} \mathrm{R}-\mathrm{CH}_3+\mathrm{H}_2 \mathrm{O}$
D
$\mathrm{R}-\mathrm{CO}-\mathrm{R} \xrightarrow[\text { (ii) } \mathrm{KOH}, \Delta \mathrm{HO}-\left(\mathrm{CH}_2\right)_2-\mathrm{OH}]{\text { (i) } \mathrm{H}_2 \mathrm{~N}-\mathrm{NH}_2} \mathrm{R}-\mathrm{CH}_2-\mathrm{R}$
4
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following catalysts is used in the Haber's process for manufacture of ammonia?

A
$\mathrm{MnO}_2$
B
$\mathrm{Mo} / \mathrm{Fe}$
C
$\mathrm{Co}-\mathrm{Th}$
D
$\mathrm{Fe}-\mathrm{Cr}$
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