JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
The resistance of a conductivity cell with cell constant \(1.14 \,\mathrm{~cm}^{-1}\), containing \(0.001\, \mathrm{M}\, \mathrm{KCl}\) at \(298\, \mathrm{~K}\) is \(1500 \,\Omega\). The molar conductivity of \(0.001\, \mathrm{M}\, \mathrm{KCl}\) solution at \(298\, \mathrm{~K}\) in \(\mathrm{S} \,\mathrm{cm}^{2}\, \mathrm{~mol}^{-1}\) is ...... . (Integer answer)
- A \(760\)
- B \(76\)
- C \(7.6\)
- D \(141\)
Answer & Solution
Correct Answer
(A) \(760\)
Step-by-step Solution
Detailed explanation
\(\mathrm{K}=\frac{1}{\mathrm{R}} \times \ell / \mathrm{A}=\left(\left(\frac{1}{1500}\right) \times 1.14\right)\, \mathrm{S}\, \mathrm{cm}^{-1}\)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The decreasing order of hydride affinity for following carbocations is: Choose the correct answer from the options given below:
JEE Mains 2023 Medium - Identify the structure of the final product (D) in the following sequence of the reactions.
Total number of \(\mathrm{sp}^2\) hybridised carbon atoms in product D is _______.JEE Mains 2025 Medium - Match List-I with List-II -
List-I (Separation of) List-II (Separation Technique) (A) Aniline from aniline-water mixture (I) Simple distillation (B) Glycerol from spent-lye in soap industry (II) Fractional distillation (C) Different fractions of crude oil in petroleum industry (III) Distillation at reduced pressure (D) Chloroform - Aniline mixture (IV) Steam distillation
Choose the correct answer from the options given below:JEE Mains 2025 Medium - Choose the correct name for compound given below:
JEE Mains 2021 Easy - The number of oxygens present in a nucleotide formed from a base, that is present only in \(RNA\) is ....JEE Mains 2022 Easy
- The increasing order of basicity for the following intermediates is (from weak to strong) \((i)\) \(\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
{C{H_3} - {C^ \mathbf{-} }} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}}
\end{array}\) \((ii)\) \(H _{2} C = CH - CH _{2}\) \((iii)\) \(HC \equiv \stackrel{\ominus}{ C }\) \((iv)\) \(\stackrel{\ominus}{ CH _{3}}\) \((v)\) \(\stackrel{\ominus}{{ }_{ CN }}\)JEE Mains 2020 Hard
More PYQs from JEE Mains
- Let \(\mathrm{Q}\) and \(\mathrm{R}\) be the feet of perpendiculars from the point \(\mathrm{P}(\mathrm{a}, \mathrm{a}, \mathrm{a})\) on the lines \(\mathrm{x}=\mathrm{y}, \mathrm{z}=1\) and \(\mathrm{x}=-\mathrm{y}\), \(\mathrm{z}=-1\) respectively. If \(\angle \mathrm{QPR}\) is a right angle, then \(12 \mathrm{a}^2\) is equal toJEE Mains 2024 Hard
- If the function \(f(x)=2 x^3-9 a x^2+12 a^2 x+1, a>0\) has a local maximum at \(\mathrm{x}=\alpha\) and a local minimum \(x=\alpha^2\), then \(\alpha\) and \(\alpha^2\) are the roots of the equation :JEE Mains 2024 Hard
- A bar magnet of length \(14 \,cm\) is placed in the magnetic meridian with its north pole pointing towards the geographic north pole. A neutral point is obtained at a distance of \(18\, cm\) from the center of the magnet. If \(B _{ H }=0.4 \,G ,\) the magnetic moment of the magnet is \(\left(1\, G =10^{-4} T \right)\)JEE Mains 2021 Hard
- The \(8^{\text {th }}\) common term of the series \(S _1=3+7+11+15+19+\ldots . .\) ; \(S _2=1+6+11+16+21+\ldots .\) is \(.......\).JEE Mains 2023 Medium
- The ranges and heights for two projectiles projected with the same initial velocity at angles \(42^{\circ}\) and \(48^{\circ}\) with the horizontal are \({R}_{1}, {R}_{2}\) and \({H}_{1}\), \({H}_{2}\) respectively. Choose the correct option:JEE Mains 2021 Medium
- The area of the region above the \(x-\) axis bounded by the curve \(y\, = tan\, x\), \(0 \leq x \leq \frac{\pi }{2}\) and the tangent to the curve at \(x\, = \frac{\pi}{4}\) isJEE Mains 2014 Hard