WB JEE 2023 | Electrochemistry Question 1 | Chemistry

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

$$\mathrm{BrF_3}$$ self ionises as following

$$\mathrm{2BrF_3\rightleftharpoons BrF^+ + BrF_5^-}$$

$$\mathrm{2BrF_3\rightleftharpoons BrF_2^+ + BrF_4^-}$$

$$\mathrm{2BrF_3\rightleftharpoons BrF_4^+ + BrF_2^-}$$

$$\mathrm{2BrF_3\rightleftharpoons BrF_3^+ + BrF_3^-}$$

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

The equivalent conductance of NaCl, HCl and CH$$_3$$COONa at infinite dilution are 126.45, 426.16 and 91 ohm$$^{-1}$$cm$$^2$$eq$$^{-1}$$ respectively at 25$$^\circ$$C. The equivalent conductance of acetic acid (at infinite dilution) would be

461.61 ohm$$^{-1}$$cm$$^2$$eq$$^{-1}$$

390.71 ohm$$^{-1}$$cm$$^2$$eq$$^{-1}$$

cannot be determined from the given data.

208.71 ohm$$^{-1}$$cm$$^2$$eq$$^{-1}$$

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

Which of the following solutions will have highest conductivity?

0.1 M CH₃COOH

0.1 M NaCl

0.1 M KNO₃

0.1 M HCl

WB JEE 2021

MCQ (Single Correct Answer)

-0.25

The reduction potential of hydrogen half-cell will be negative if

p(H₂) = 1 atm and [H⁺] = 1.0 M

p(H₂) = 1 atm and [H⁺] = 2.0 M

p(H₂) = 2 atm and [H⁺] = 1.0 M

p(H₂) = 2 atm and [H⁺] = 2.0 M

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