Which of the following is not a peroxy acid ?

Which one of the following transitions of an electron in hydrogen atom emits radiation of the lowest wavelength?

For the formation of \(\mathrm{NH}_3\) from \(\mathrm{N}_2\) and \(\mathrm{H}_2\) at \(500 \mathrm{~K}\), the concentration of \(\mathrm{N}_2, \mathrm{H}_2\) and \(\mathrm{NH}_3\) at equilibrium are \(1.5 \times 10^{-2} \mathrm{M}, 3.0 \times 10^{-2} \mathrm{M}\) and \(1.2 \times 10^{-2} \mathrm{M}\), respectively. The equilibrium constant for the reverse reaction is

Which one of the following gives Prussian blue colour?

In which of the following options, the molecules are correctly arranged in the increasing order of their bond angles?

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?

Liquid \(X\) is used in bubble chamber to detect neutral mesons and gamma photons. Then, \(X\) is

It is possible to project a particle with a given velocity in two possible ways so as to make them pass through a point \(p\) at a horizontal distance \(r\) from the point of projection. If \(t_1\) and \(t_2\) are times taken to reach this point in two possible ways, then the product \(t_1 t_2\) is proportional to

If \(A\) and \(B\) are two events of a random experiment such that \(P(\bar{A})=\frac{2}{3}, P(B)=\frac{4}{15}\) and \(\mathrm{P}(\mathrm{A} \cap \bar{B})=\frac{1}{5}\), then \[ \sqrt{195[P(B \mid(A \cup \bar{B}))+P(A \cup B)]}= \]

What are the products formed when an aqueous solution of magnesium bicarbonate is boiled?

For $x\in R-\{-6\},$ the value of $\frac{(x+2)(x+5)}{(x+6)}$ does not lie in the interval

A particle of mass 4 mg is executing simple harmonic motion along \(x\)-axis with an angular frequency of 40 rad \(\mathrm{s}^{-1}\). If the potential energy of the particle is \(V(x)=a+\) \(b x^2\), where \(V(x)\) is in joule and \(x\) is in metre, then the value of \(b\) is

The point \((4,1)\) undergoes the following transformations successively : (i) Reflection is the line \(x-y=0\) (ii) Shifting through a distance of 2 units along the positive \(X\)-axis (iii) Projection on \(X\)-axis The coordinates of the point in its final position are