Which of the options correctly represent the basicity for these compounds?

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?

The number of octahedral and tetrahedral holes respectively present in a hexagonal close packed ( \(h c p)\) crystal of ' \(X\) ' atoms are

The intramolecular hydrogen bonding is present in

Find the suitable $\mathrm{IUPAC}$name of the compound given below.

Sodium metal crystallises in a body centred cubic lattice with edge length of \(x Å\). If the radius of sodium atom is \(1.86 Å\), the value of \(x\) is

Which of the following statements is not correct regarding the gas evolved by the reaction of dilute HCl on \(\mathrm{CaCO}_3\) ?

A carrier wave of peak voltage $20 \mathrm{V}$ is used to transmit a message signal. For getting a modulation index of $60\%$, the peak voltage of the modulating signal is

If \(d\) is the distance between the point of intersection of the lines \(x^2+4 x y+k y^2-4 x-10 y+3=0\) and the origin and \(p\) is the product of the perpendicular distances from the origin to these lines, then \(d^2-20 p^2=\)

\(p\) and \(q\) are two roots of the equation \(x^2+7 x+3=0\). If \(\frac{3 p}{1-2 p}, \frac{3 q}{1-2 q}\) are the roots of \(l x^2+m x+n=0\) and the greatest common divisor of \(l, m, n\) is 1 , then \(l-m+n=\)

Arrange the following in the correct order of their acidic strength
\(H _2 C = CH _2 \quad CH \equiv CH \quad CH _3- C \equiv CH \quad CH _3- CH _3\)
I II III IV V

Suppose the new axes \(X, Y\) are generated by rotating the coordinate axes \(x, y\) about the origin through an angle of \(30^{\circ}\) in the anti-clockmise direction. Then, the transformed equation of \(x^2+2 \sqrt{3} x y-y^2=2 a^2\) with respect to new axes \(X, Y\) is

When a body of mass \(1.0 \mathrm{~kg}\) is suspended from a certain light spring hanging vertically, its length increases by \(5 \mathrm{~cm}\). By suspending \(2.0 \mathrm{~kg}\) block to the spring and if the block is pulled through \(10 \mathrm{~cm}\) and released, the maximum velocity in it in \(\mathrm{m} / \mathrm{s}\) is : (Acceleration due to gravity \(=10 \mathrm{~m} / \mathrm{s}^2\) )