The pair in which both the species have same magnetic moment (spin only) is

Identify the pair of elerments in which the number of \(s\)-electrons to \(p\)-electrons ratio is \(2: 3\)

What are the metal ions present in carnallite?

The standard reduction potentials of \(\mathrm{Zn}^{2+}\left|\mathrm{Zn}, \mathrm{Cu}^{2+}\right| \mathrm{Cu}\) and \(\mathrm{Ag}^{+} \mid \mathrm{Cu}\) and \(\mathrm{Ag}^{+} \mid \mathrm{Ag}\) are respectively \(-0.76,0.34\) and \(0.8 \mathrm{~V}\). The following cells were constructed : (1) \(\mathrm{Zn}\left|\mathrm{Zn}^{2+}\right|\left|\mathrm{Cu}^{2+}\right| \mathrm{Cu}\) (2) \(\mathrm{Zn}\left|\mathrm{Zn}^{2+}\right|\left|\mathrm{Ag}^{+}\right| \mathrm{Ag}\) (3) \(\mathrm{Cu}\left|\mathrm{Cu}^{2+} \| \mathrm{Ag}^{+}\right| \mathrm{Ag}\) What is the correct order of \(E_{\text {cell }}^{\circ}\) of these cells?

Oxidation of cyclohexene in presence of acidic potassium permaganate leads to

Which of the following is not a characteristic property of chemical equilibrium ?

The buffer system which helps to maintain the \(\mathrm{pH}\) of blood between 7.26 to 7.42 , is

\(\lim _{x \rightarrow 2}\left[\left(x^2-4 x+4\right) \cos \left(\frac{2}{x-2}\right)+\frac{x^2-4}{x^3-2 x-4}\right]=\)

The relation between the current \(i\) (in ampere) in a conductor and the time \(t\) (in second) is \(i=12 t+9 t^2\). The charge passing through the conductor between the times \(t=2 \mathrm{~s}\) and \(t=10 \mathrm{~s}\) is

A \(6 \mathrm{~V}\) cell with \(0.5 \Omega\) internal resistance, a \(10 \mathrm{~V}\) cell with \(1 \Omega\) internal resistance and a \(12 \Omega\) external resistance are connected in parallel. The current (in ampere) through the \(10 \mathrm{~V}\) cell is

Let \(A=\left[\begin{array}{rrr}-1 & -2 & -3 \\ 3 & 4 & 5 \\ 4 & 5 & 6\end{array}\right], B=\left[\begin{array}{cr}1 & -2 \\ -1 & 2\end{array}\right] \quad\) and \(C=\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2\end{array}\right]\), if \(a, b\) and \(c\) respectively, denote the ranks of \(A, B\) and \(C\), then the correct order of these number is

Identify the correct order in which the covalent radius of the following elements increases (I) \(\mathrm{Ti}\[\quad\)(II) \(\mathrm{Ca}\]\quad\)(III) Sc

Four masses are arranged along a circle of radius $1 \mathrm{m}$ as shown in the figure. The center of mass of this system of masses is at