JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
If the conductivity of mercury at \(0^{\circ} \,\mathrm{C}\) is \(1.07 \times 10^{6}\) \(\mathrm{S} \,\mathrm{m}^{-1}\) and the resistance of a cell containing mercury is \(0.243\, \Omega\), then the cell constant of the cell is \(\mathrm{x} \times 10^{4} \,\mathrm{~m}^{-1}\). The value of \(\mathrm{x}\) is ...... .(Nearest integer)
- A \(260\)
- B \(39\)
- C \(26\)
- D \(13\)
Answer & Solution
Correct Answer
(C) \(26\)
Step-by-step Solution
Detailed explanation
\(\mathrm{k}=1.07 \times 10^{6}\, \mathrm{Sm}^{-1}, \quad \mathrm{R}=0.243\, \Omega\) \(\mathrm{G}=\frac{1}{\mathrm{R}}=\frac{1}{0.243}\, \Omega^{-1}\) \(\mathrm{k}=\mathrm{G} \times \mathrm{G}^{*}\)…
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
- Galvanization is applying a coating of :JEE Mains 2016 Easy
- The increasing order of \(pKa\) of following amino acids in aqueous solution is \(Gly, \,Asp,\, Lys,\, Arg\)JEE Mains 2019 Hard
- Consider the hydrated ions of \(Ti^{2+}, V^{2+}, Ti^{3+}\) and \(Sc^{3+}\). The correct order of their spin-only magnetic moments isJEE Mains 2019 Hard
- Identity the incorrect pair from the following:JEE Mains 2024 Hard
- The cell potential for the given cell at \(298 \,K\) \(Pt\) \(\mid H _{2}\) \((g,1 \,bar)\) \(\left| H ^{+}( aq ) \| Cu ^{2+}( aq )\right| Cu ( s )\) is \(0.31\, V\). The \(pH\) of the acidic solution is found to be \(3 ,\) whereas the concentration of \(Cu ^{2+}\) is \(10^{- x } \,M\). The value of \(x\) is \(.....\) (Given: \(E _{ Cu ^{2+} / Cu }^{\ominus}=0.34 \,V\) and \(\frac{2.303 RT }{ F }=0.06\, V\) )JEE Mains 2022 Medium
- Given below are two statements: Statement \(I:\) \(\left[\mathrm{Mn}(\mathrm{CN})_{6}\right]^{3-},\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) and \(\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\) are \(d^{2} \mathrm{sp}^{3}\) hybridised. Statement \(II:\) \(\left[\mathrm{MnCl}_{6}\right]^{3-}\) and \(\left[\mathrm{FeF}_{6}\right]^{3-}\) are paramagnetic and have \(4\) and \(5\) unpaired electrons, respectively. In the light of the above statements, choose the coorrect answer from the options given below :JEE Mains 2021 Hard
More PYQs from JEE Mains
- A coaxial cable consists of an inner wire of radius \('a'\) surrounded by an outer shell of inner and outer radii ' \({b}\) ' and '\(c\)' respectively. The inner wire carries an electric current is, which is distributed uniformly across cross-sectional area. The outer shell carries an equal current in opposite direction and distributed uniformly. What will be the ratio of the magnetic field at a distance \({x}\) from the axis when \((i)\) \({x}<{a}\) and \((ii)\) \({a}<{x}<{b}\) ?JEE Mains 2021 Hard
- Let \(m, n \in N\) and \(\operatorname{gcd}(2, n)=1\). If \(30\left(\begin{array}{l}30 \\ 0\end{array}\right)+29\left(\begin{array}{l}30 \\ 1\end{array}\right)+\ldots+2\left(\begin{array}{l}30 \\ 28\end{array}\right)+1\left(\begin{array}{l}30 \\ 29\end{array}\right)= n .2^{ m }\) then \(n + m\) is equal to (Here \(\left.\left(\begin{array}{l} n \\ k \end{array}\right)={ }^{ n } C _{ k }\right)\)JEE Mains 2021 Hard
- The locus of the point of intersection of the lines \((\sqrt{3}) kx + ky -4 \sqrt{3}=0\) and \(\sqrt{3} x-y-4(\sqrt{3}) k=0\) is a conic, whose eccentricity is .............JEE Mains 2021 Hard
- If \(f(x)\, = sin\, (sin\,x)\) and \(f"(x) + tan\,xf'(x) + g(x)\, = 0\), then \(g(x)\) isJEE Mains 2013 Hard
- If \(f( x + y )=f( x ) f( y )\) and \(\sum \limits_{ x =1}^{\infty} f( x )=2, x , y \in N\) where \(N\) is the set of all natural numbers, then the value of \(\frac{f(4)}{f(2)}\) isJEE Mains 2020 Hard
- A network of four resistances is connected to \(9\,V\) battery, as shown in figure. The magnitude of voltage difference between the points \(A\) and \(B\) is .......... \(V.\)
JEE Mains 2023 Medium