BITSAT 2024 | Electrochemistry Question 4 | Chemistry

Calculate the molarity of a solution containing 5 g of NaOH dissolved in the product of $ \mathrm{H}_{2}-\mathrm{O}_{2} $ fuel cell operated at 1 A current for 595.1 hours. (Assume $ \mathrm{F}=96500 \mathrm{C} / \mathrm{mol} $ of electron and molecular weight of NaOH as $ 40 \mathrm{~g} \mathrm{~mol}^{-1} $ ).

0.625 M

0.05 M

0.1 M

6.25 M

BITSAT 2023

MCQ (Single Correct Answer)

-1

The equilibrium constant of the reaction

$$A(s)+2 B^{+}(a q) \rightleftharpoons A^{2+}(a q)+2 B(s)$$

$$E_{\text {cell }}^{\circ}=0.0295 \mathrm{~V} \text { is } \quad\left[\frac{2.303 R T}{F}=0.059\right]$$

$$2\times10^1$$

$$3\times10^1$$

$$2\times10^5$$

BITSAT 2022

MCQ (Single Correct Answer)

-1

Using the standard electrode potential, find out the pair between which redox reaction is not feasible.

E$$^\Theta $$ values Fe³⁺ / Fe²⁺ = + 0.77; I₂ / I^$$-$$ = + 0.54 Cu²⁺ / Cu = + 0.34; Ag⁺ / Ag = 0.80 V

Fe³⁺ and I^$$-$$

Ag⁺ and Cu

Fe³⁺ and Cu

Ag and Fe³⁺

BITSAT 2021

MCQ (Single Correct Answer)

-1

The molar conductivities of KCl, NaCl and KNO₃ are 152, 128 and 111 S cm² mol^$$-$$1 respectively. What is the molar conductivity of NaNO₃?

101 S cm² mol^$$-$$1

87 S cm² mol^$$-$$1

$$-$$ 101 S cm² mol^$$-$$1

$$-$$ 391 S cm² mol^$$-$$1

PREVIOUS NEXT

BITSAT Subjects

Browse all chapters by subject

English Proficiency

Fill in the Blanks Comprehension Ability Rearrangement Grammar Vocabulary

Logical Reasoning

Verbal

Direction Sense Test Analogy Classification Series Completion Blood Relations Logical Deduction Logic Chart

Non Verbal

Figure Formation Rule Detection Paper Folding and Cutting Mirror Image Figure Matrix Completion of Figure