Given that molar conductances for \(\mathrm{Ba}(\mathrm{OH})_{2}\), \(\mathrm{BaCl}_{2}\) and \(\mathrm{NH}_{4} \mathrm{Cl}\) are \(523.28,280.0\) and \(129.8\) \(\Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\) respectively. What is the molar conductivity \(\left(\Omega^{-1} \mathrm{~cm}^{2} \mathrm{~mol}^{-1}\right)\) of \(\mathrm{NH}_{4} \mathrm{OH}\) ?

Identify the reaction that doesn't take place during the smelting process of copper extraction

An optically active compound \([\mathrm{X}]\) (Molecular formula \(\mathrm{C}_8 \mathrm{H}_{11} \mathrm{~N}\) ) reacts with \(\mathrm{CHCl}_3\) / Ethanolic KOH on heating to form an isocyanide. On reaction with \(\mathrm{NaNO}_2 / \mathrm{HCl}\), it yields an alcohol with liberation of \(\mathrm{N}_2\). Identify the compound \([\mathrm{X}]\).

The \(\Delta\)G\(^o\) for the reaction, \(\text{Cd}^{2+}(aq) + \text{Zn}(s) \rightarrow \text{Zn}^{2+}(aq) + \text{Cd}(s)\) is:
\(\left[E^o_{\text{Cd}^{2+}/\text{Cd}} = -0.403,\ E^o_{\text{Zn}^{2+}/\text{Zn}} = -0.763\ V\right]\)

Which of the coordination compounds [(i) to (v)] are used for the following processes:
A: Electroplating
B: Removal of excess copper from human body
C: Estimation of hardness of water
(i) DMG (ii) \(\mathrm{Na}_2 \mathrm{EDTA}\) (iii) Cis- platin
(iv) D-penicillamine (v) \(\mathrm{K}\left[\mathrm{Au}(\mathrm{CN})_2\right]\)

The Molar conductivity of \(0.05 \mathrm{M}\) solution of \(\mathrm{MgCl}_2\) is \(194.5 \mathrm{~ohm}^{-1} \mathrm{~cm}^2\) per mole at room temperature. A Conductivity cell with electrodes having \(3.0 \mathrm{~cm}^2\) surface area and \(1.0 \mathrm{~cm}\) apart is filled with the solution of \(\mathrm{MgCl}_2\). What would be the resistance offered by the conductivity cell?

When the concentration is expressed as the number of moles of solute per kilogram of the solvent, it is known as

A proton is moving along negative X axis. If a uniform magnetic field is applied parallel to the positive Z axis, then choose the correct answer from the following options;
1. The proton will experience magnetic force along positive Y direction and will move along a circular path in the XY plane
2. The proton will experience magnetic force along negative Y direction and will move along a circular path in the XY plane
3. The proton will experience magnetic force along positive Y direction and will move along a circular path in the XZ plane
4. The proton will experience magnetic force along negative Y direction and will move along a circular path in the XZ plane

Which of the following is a correct statement?

The vector that must be added to \(\hat{\mathrm{i}}-3 \hat{\mathrm{j}}+2 \hat{\mathrm{k}}\) and \(3 \hat{\mathrm{i}}+6 \hat{\mathrm{j}}-7 \hat{\mathrm{k}}\) so resultant vector is a unit vector along the \(X\) - axis is

The maximum value of \(Z=10 x+16 y\), subject to constraints \(x \geq 0, y \geq 0, x+y \leq 12,2 x+y \leq 20\) is

Identify the incorrect statement among the following.

The first electron gain enthalpy of oxygen is \(-141 \mathrm{~kJ} \mathrm{~mol}^{-1}\), its second electron gain enthalpy is: