1
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the volume (in dm$$^3$$) occupied by 75 g ethane at S.T.P. ?

A
60.0
B
56.0
C
22.4
D
44.8
2
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the reactant, reagent and condition of Kolbe's reaction from following.

A
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{ONa}, \mathrm{CO}_2$$ and $$398 \mathrm{~K}, 6 \mathrm{~atm}$$
B
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{ONa}, \mathrm{Na}_2 \mathrm{CO}_3$$ and $$398 \mathrm{~K}$$
C
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}, \mathrm{CHCl}_3$$ and aq. $$\mathrm{NaOH}$$
D
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}$$, dil. $$\mathrm{HNO}_3$$ and $$413 \mathrm{~K}$$
3
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The wavelength of a spectral line of caesium is $$460 \mathrm{~nm}$$. What is the frequency of spectral line?

A
$$4.5 \times 10^8 \mathrm{~Hz}$$
B
$$6.5 \times 10^{14} \mathrm{~Hz}$$
C
$$3 \times 10^9 \mathrm{~Hz}$$
D
$$5.6 \times 10^{14} \mathrm{~Hz}$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Select the catalyst used in hydrogenation of ethene.

A
Fe - Cr
B
MnO$$_2$$
C
Ni (finely divided)
D
Co - Th alloy
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