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1
MHT CET 2024 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the amount of electricity required to convert 1.1 mol of $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ to $\mathrm{Cr}^{+3}$ in acidic medium.

A
$6.369 \times 10^5 \mathrm{C}$
B
$1.462 \times 10^5 \mathrm{C}$
C
$4.839 \times 10^5 \mathrm{C}$
D
$3.419 \times 10^5 \mathrm{C}$
2
MHT CET 2024 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is NOT correct for $\mathrm{H}_2-\mathrm{O}_2$ fuel cell?

A
$\mathrm{H}_{2(\mathrm{~g})}$ serves as fuel
B
$\mathrm{O}_{2(\mathrm{~g})}$ is an oxidising agent
C
Platinum wires are used as anode and cathode
D
Hot aqueous KOH solution acts as an electrolyte
3
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The resistance of a conductivity cell of 0.1 M KCl solution is 120 ohm and conductivity is $1.64 \times 10^{-4} \mathrm{~S} \mathrm{~cm}^{-1}$. What is the value of cell constant?

A
$0.0136 \mathrm{~cm}^{-1}$
B
$0.0196 \mathrm{~cm}^{-1}$
C
$0.0618 \mathrm{~cm}^{-1}$
D
$0.0731 \mathrm{~cm}^{-1}$
4
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following changes occurs during the discharging of lead accumulator?

A
$\mathrm{Pb}_{(\mathrm{s})}$ is reduced
B
$\mathrm{H}_2 \mathrm{SO}_4$ is consumed
C
$\mathrm{PbSO}_4$ is consumed
D
$\mathrm{PbO}_2$ is produced
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