AP EAPCET 2021 20TH AUGUST EVENING SHIFT

When the temperature of an ideal gas is increased from 27\(^\circ\)C to 127\(^\circ\)C. Calculate the percentage increase in its \(v_{rms}\).

\(7.8 \mathrm{~g}\) of a compound having molecular formula \(\mathrm{C}_6 \mathrm{H}_6\), on reacting with \(\mathrm{CH}_3 \mathrm{COCl} / \mathrm{AlCl}_3\) gives \(8.4 \mathrm{~g}\) of a product which has molecular formula \(\mathrm{C}_8 \mathrm{H}_8 \mathrm{O}\). Calculate the percentage yield of the product \(\mathrm{C}_8 \mathrm{H}_8 \mathrm{O}\). (Given, atomic weights of \(\mathrm{H}, \mathrm{C}\) and \(\mathrm{O}\) respectively are 1, 12 and 16)

The value of \(p\) for which the equation \(x^2+p x y+y^2-5 x-7 y+6=0\) represents a pair of straight lines is

Which year was declared as the International year of Physics?

\(0.63 \mathrm{~g}\) of oxalic acid is dissolved in order to obtain \(250 \mathrm{~cm}^3\) of its solution. Find the normality of this solution. [oxalic acid \(\left.(\mathrm{COOH})_2 \cdot 2 \mathrm{H}_2 \mathrm{O}\right]\)

If the product of the roots of \(9x^3+112x^2-120x+a=0\) is 12, then the value of \(a\) is