The metals that are employed in the battery industries are
A. Fe
B. Mn
C. Ni
D. Cr
E. Cd
Choose the correct answer from the options given below:
A. Fe
B. Mn
C. Ni
D. Cr
E. Cd
Choose the correct answer from the options given below:
- B, C, and E only
- A, B, C, D, and E
- A, B, C, and D only
- B, D, and E only
The Correct Option is A
Approach Solution - 1
To determine which metals are employed in the battery industries, we need to assess the given options. Batteries are commonly made using metals that provide good electron flow and stability. Let's examine the given options:
- Fe (Iron) - Though iron is used in many industrial applications, it is not typically used in battery manufacturing due to its tendency to corrode and not having the required electrochemical properties.
- Mn (Manganese) - Manganese is commonly used in batteries, particularly in alkaline batteries and lithium-ion batteries in the form of manganese dioxide.
- Ni (Nickel) - Nickel is widely used in various types of rechargeable batteries, including Nickel-Cadmium (NiCd) and Nickel-Metal Hydride (NiMH) batteries.
- Cr (Chromium) - Chromium is not commonly used in battery manufacturing. Its primary uses are in corrosion-resistant materials and stainless steel production.
- Cd (Cadmium) - Cadmium is used in rechargeable NiCd batteries. Despite the environmental concerns associated with cadmium, it is a key component in this type of battery.
Analyzing these facts, the metals used in battery industries from the given options are Manganese (Mn), Nickel (Ni), and Cadmium (Cd).
Therefore, the correct answer is: B, C, and E only.
Approach Solution -2
\( \text{Mn, Ni, and Cd metals are used in battery industries.} \)
Top Questions on Electrochemistry
Consider the above electrochemical cell where a metal electrode (M) is undergoing redox reaction by forming $M^+$ ($M \to M^+ + e^-$). The cation $M^+$ is present in two different concentrations $c_1$ and $c_2$ as shown above. Which of the following statement is correct for generating a positive cell potential?- JEE Main - 2026
- Chemistry
- Electrochemistry
- A volume of x mL of 5 M NaHCO3 solution is mixed with 10 mL of 2 M H2CO3 solution to make an electrolytic buffer.
If the same buffer is used in the following electrochemical cell and the recorded cell potential is 253.5 mV, then the value of x (nearest integer) is ______ mL.
Electrochemical cell:
Sn(s) | Sn(OH)2(s) | HSnO2− (0.05 M) | OH− (0.05 M) || Bi2O3(s) | Bi(s)
Given:
Standard electrode potential of HSnO2− / Sn(OH)2 = −0.90 V
Standard electrode potential of Bi2O3 / Bi = −0.44 V
pKa of H2CO3 = 6.11
2.303 RT / F = 0.059 V
Antilog (1.29) = 19.5- JEE Main - 2026
- Chemistry
- Electrochemistry
- The pH and conductance of a weak acid (HX) was found to be 5 and \(4\times10^{-5}\) S, respectively. The conductance was measured under standard condition using a cell where the electrode plates having a surface area of 1 cm\(^2\) were at a distance of 15 cm apart. The value of the limiting molar conductivity (\(\Lambda_m^\circ\)) is___ S cm\(^2\) mol\(^{-1}\) (nearest integer) (Given: degree of dissociation \(\alpha \ll 1\))
- JEE Main - 2026
- Chemistry
- Electrochemistry
MX is a sparingly soluble salt that follows the given solubility equilibrium at 298 K.
MX(s) $\rightleftharpoons M^{+(aq) }+ X^{-}(aq)$; $K_{sp} = 10^{-10}$
If the standard reduction potential for $M^{+}(aq) + e^{-} \rightarrow M(s)$ is $(E^{\circ}_{M^{+}/M}) = 0.79$ V, then the value of the standard reduction potential for the metal/metal insoluble salt electrode $E^{\circ}_{X^{-}/MX(s)/M}$ is ____________ mV. (nearest integer)
[Given : $\frac{2.303 RT}{F} = 0.059$ V]- JEE Main - 2026
- Chemistry
- Electrochemistry
- For a closed circuit Daniell cell, which of the following plots is the accurate one at a given temperature ?
- JEE Main - 2026
- Chemistry
- Electrochemistry
Questions Asked in JEE Main exam
- A point source is kept at the center of a spherically enclosed detector. If the volume of the detector is increased by 8 times, the intensity will
- JEE Main - 2026
- Wave optics
- Two strings (A, B) having linear densities \(\mu_A = 2 \times 10^{-4}\) kg/m and, \(\mu_B = 4 \times 10^{-4}\) kg/m and lengths \(L_A = 2.5\) m and \(L_B = 1.5\) m respectively are joined. Free ends of A and B are tied to two rigid supports C and D, respectively creating a tension of 500 N in the wire. Two identical pulses, sent from C and D ends, take time \(t_A\) and \(t_B\), respectively, to reach the joint. The ratio \(t_A/t_B\) is:
- JEE Main - 2026
- Electromagnetic waves
- Initially a satellite of 100 kg is in a circular orbit of radius 1.5\(R_E\). This satellite can be moved to a circular orbit of radius 3\(R_E\) by supplying \(a \times 10^6\) J of energy. The value of a is_________ . (Take Radius of Earth \(R_E = 6 \times 10^6\) m and g = 10 m/s\(^2\)).
- JEE Main - 2026
- Gravitation
- A moving coil galvanometer of resistance \(100\,\Omega\) shows a full scale deflection for a current of \(1\,\text{mA}\). The value of resistance required to convert this galvanometer into an ammeter, showing full scale deflection for a current of \(5\,\text{mA}\), is ________ \(\Omega\).
- JEE Main - 2026
- Current electricity
A 1 m long metal rod AB completes the circuit as shown in figure. The area of circuit is perpendicular to the magnetic field of 0.10 T. If the resistance of the total circuit is 2 \(\Omega\) then the force needed to move the rod towards right with constant speed (v) of 1.5 m/s is _____ N.
- JEE Main - 2026
- Electromagnetic Induction and Inductance