The compound formed when gypsum is dissolved in aqueous ammonium sulphate solution, is

Which one of the following ions participates in the production of ATP from the oxidation of glucose?

Identify the reactions in which dichromate acts as an oxidising reagent.
I. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+6 \mathrm{Fe}^{2+}+14 \mathrm{H}^{+} \longrightarrow 2 \mathrm{Cr}^{3+}+6 \mathrm{Fe}^{3+}+7 \mathrm{H}_2 \mathrm{O}\)
II. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+2 \mathrm{OH}^{-} \longrightarrow 2 \mathrm{CrO}_4^{2-}+\mathrm{H}_2 \mathrm{O}\)
III. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+6 \mathrm{I}^{-}+14 \mathrm{H}^{+} \longrightarrow 2 \mathrm{Cr}^{3+}+3 \mathrm{I}_2+7 \mathrm{H}_2 \mathrm{O}\)
IV. \(\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7+2 \mathrm{KCl} \longrightarrow \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+2 \mathrm{NaCl}\)

Identify the correct statement from the following

The AT/GC ratio in human beings is (where \(\mathrm{A}=\) adenine, \(\mathrm{T}=\) thymine, \(\mathrm{G}=\) Guanine, \(\mathrm{C}=\) cytosine)

The product of an amine ' \(\mathrm{X}\) ' with benzene sulphonyl chloride produces the product which is insoluble in alkali. The product of ' \(\mathrm{X}\) ' with ethanoyl chloride is

\(\mathrm{Xe}(\mathrm{g})+2 \mathrm{~F}_2(\mathrm{~g}) \xrightarrow[7 \text { bar }]{873} \mathrm{XeF}_4(\mathrm{~s})\)
The ratio of \(\mathrm{Xe}: \mathrm{F}_2\) required in the above reaction is

Identify the correct statement from the following.

If the axes are transformed to the point (− 1,1), then the equation
\(3 x^2+y^2+2 x+4 y+15=0\) would transform

If \(-\frac{\pi}{2} < \theta < \frac{\pi}{2}\), then \(\log \left(\tan \left(\frac{\pi}{4}+\frac{\theta}{2}\right)\right)=\)

If \(x-y-3=0\) is a normal drawn through the point \((5,2)\) to the parabola \(y^2=4 x\), then the slope of the other normal that can be drawn through the same point to the parabola \(y^2=4 x\) is

Ratio of angular velocity of hour hand of a watch and the angular velocity of rotation of earth is

The pair of gases responsible for acid rain are