Predict the final major product 'S' of the following reaction

The volume of \(10 \mathrm{~N}\) and \(4 \mathrm{~N}\) HCl required to make 1 litre of \(7 \mathrm{~N} \mathrm{HCl}\) are

How many grams of potassium dichromate are required to oxidise 20.0 g of \(\mathrm{Fe}^{2+}\) in \(\mathrm{FeSO}_4\) to \(\mathrm{Fe}^{3+}\) if the reaction carried out in an acidic medium? Molar mass of \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) and \(\mathrm{FeSO}_4\) are 294 and 152 respectively.

Ozone in stratosphere is depleted by

For the reaction \(\mathrm{Cl}_{2(\mathrm{~g})}+2 \mathrm{NO}_{(\mathrm{g})} \rightarrow 2 \mathrm{NOCl}_{(\mathrm{g})}\), the following data was obtained:

Experiment No.	Initial concentration of \(Cl_2\) (M)	Initial concentration of NO (M)	Initial reaction rate (M/min)
I	0.15	0.15	0.60
II	0.30	0.15	1.20
III	0.15	0.30	2.40
IV	0.25	0.25	2.78

Identify the order of the reaction with respect to \(\mathrm{Cl}_2, \mathrm{NO}\) and the value of Rate constant.

What is the quantity of charge, in Faraday units, required for the reduction of 3.5 moles of \(\mathrm{Cr}_2 \mathrm{O} 7^{2-}\) in acid medium?

Which one of the following structures in Column I does not have the correct IUPAC name as given in Column II.
\(\begin{array}{|c|l|l|} \hline \text { S.No. } & \text { Structure } & \text { IUPAC name. } \\ \hline \text { A } & {\left[\mathrm{CoBr} r_2(\mathrm{en})_2\right] \mathrm{Cl}} & \text { Dibromidodi-( ethan-1, 2 - diamine)cobalt (III) chloride } \\ \hline \text { B } & \mathrm{Na}\left[\mathrm{PtBrCl}\left(\mathrm{NO}_2\right)\left(\mathrm{NH}_3\right)\right] & \text { Sodium amminebromidochloridonitrito- N- palatinate(II) } \\ \hline \text { C } & {\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_2\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}\right] \mathrm{SO}_4} & \text { Tetraamminediaquachloridochromium (III) sulphate. } \\ \hline \text { D } & {\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]\left[\mathrm{PtCl}_4\right]} & \text { Tetraammineplatinum (II) tetrachloridoplatinate (II) } \\ \hline \end{array}\)

Which of the following is an electromagnetic wave?
A. Sound waves
B. Alpha rays
C. Beta rays
D. Gamma rays

In a \(0.2 \mathrm{M}\) aqueous solution, lactic acid is \(6.9 \%\) dissociated. The value of dissociation constant is

Which statement is not true for describing enzymes?

Two tangent galvanometers \(A\) and \(B\) are identical except in their number of turns. They are connected in series. On passing a current through them, deflections of \(60^{\circ}\) and \(30^{\circ}\) are produce(d)The ratio of the number of turns in \(A\) and \(B\) is

It is difficult to observe diffraction in case of light waves, because

Incident light of wavelength \(\lambda=800 \mathrm{~nm}\) produces a diffraction pattern on a screen \(1.5 \mathrm{~m}\) away when it passes through a single slit of width \(0.5 \mathrm{~mm}\). The distance between the first dark fringes on either side of the central bright fringe is