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In an atom, an electron is moving with a speed of 600m/s with an accuracy of 0.005%. Certainity with which the position of the electron can be located is $(h=6.6×10_{−34}kgm_{2}s_{−1}$ " mass of electron, " e_(m) = 9.1 xx 10^(-31) kg)

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Statement 1: For every natural number $n≥2$, \displaystyle\frac{{1}}{{\sqrt{}}}

For the following three reactions a, b and c, equilibrium constants are given: a. \displaystyle{C}{O}{\left({g}\right)}+{H}_{{{2}}}{O}{\left({g}\right)}\Leftrightarrow{C}{O}_{{{2}}}{\left({g}\right)}+{H}_{{{2}}}{\left({g}\right)},{K}_{}

Due to the presence of the current \displaystyle{I}_{}

Given $E_{Cr_{3+}/Cr}=−0.72V,E_{Fe_{2+}/Fe}=−0.42V$. The potential for the cell $Cr/Cr_{3+}(0.1)∣∣ ∣∣ Fe_{2+}(0.01M)∣∣ ∣∣ Fe$ is

Which of the following statements is incorrect regarding physissorptions ?

The $pK_{a}$ of a weak acid, HA, is 4.80. The $pK_{b}$ of a weak base, BOH, is 4.78. The pH of an aqueous solution of the corresponding salt, BA, will be

A student measuring the focal length of convex lens by putting an object pin at a distance 'u' from the lens and measuring the distance 'v' of the image pin. The graph between 'u' and 'v' plotted by the student should look like

Let A be a $2×2$ matrix with real entries. Let I be the $2×2$identity matrix. Denote by tr (A), the sum of diagonal entries of A. Assume that $A_{2}=I$.Statement 1: If $A=I$and $A=−I$, then det $A=−1$.Statement 2: If $A=I$and $A=−I$, then $tr(A)=0$.