Given below are two statements I and II. Statement I : Dumas method is used for estimation of "Nitrogen" in an organic compound. Statement II : Dumas method involves the formation of ammonium sulphate by heating the organic compound with conc ${\mathrm{H}}_2{\mathrm{SO}}_4$. In the light of the above statements, choose the correct answer from the options given below

For reaction The correct order of set of reagents for the above conversion is :

$\mathrm{A}\underset{\text{ (i) }{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\text{(i) }\mathrm{NaH}}{\to }}\mathrm{B}\underset{\text{ (ii) }{\mathrm{H}}_2{\mathrm{SO}}_4,\Delta }{\overset{\text{ (i) }\mathrm{EOH}}{\to }}\mathrm{C}$ ' A ' shows positive Lassaign's test for N and its molar mass is 121 . ' B ' gives effervescence with aq ${\mathrm{NaHCO}}_3$. 'C' gives fruity smell. Identify $\mathrm{A},\mathrm{B}$ and C from the following.

The correct order of basic nature in aqueous solution for the bases ${\mathrm{NH}}_3,{\mathrm{H}}_2\mathrm{N}-{\mathrm{NH}}_2,{\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2,{\left({\mathrm{CH}}_3{\mathrm{CH}}_2\right)}_2\mathrm{NH}$ and ${\left({\mathrm{CH}}_3{\mathrm{CH}}_2\right)}_3\mathrm{N}$ is :

Which of the following amine (s) show (s) positive carbylamine test? B. ${\left({\mathrm{CH}}_3\right)}_2\mathrm{NH}$ C. ${\mathrm{CH}}_3{\mathrm{NH}}_2$ D. ${\left({\mathrm{CH}}_3\right)}_3\mathrm{N}$ Choose the correct answer from the options given below:

When a concentrated solution of sulphanilic acid and 1-naphthylamine is treated with nitrous acid $(273\mathrm{K})$ and acidified with acetic acid, the mass $(\mathrm{g})$ of 0.1 mole of product formed is : (Given molar mass in $\mathrm{g}{\mathrm{mol}}^{-1}\mathrm{H}:1,\mathrm{C}:12,\mathrm{N}:14,\mathrm{O}:16,\mathrm{S}:32$ )

Match List - I with List - II. List - I (Conversion) List - II (Reagents, Conditions used) (I) Warm H2O (II) (a) NaOH, 368K; (b) H3O+ (III) (a) NaOH, 443K; (b) H3O+ (IV) (a) NaOH, 623K, 300 atm; (b) H3O+ Choose the correct answer from the options given below :

The major product (A) formed in the following reaction sequence is

The sequence from the following that would result in giving predominantly $3,4,5-$ Tribromoaniline is :

Match List - I with List - II : List - I (Applications) List - II (Batteries/Cell) (A) Transistors (I) Anode - Zn/Hg; Cathode - HgO + C (B) Hearing aids (II) Hydrogen fuel cell (C) Inverters (III) Anode - Zn; Cathode - Carbon (D) Apollo space ship (IV) Anode - Pb; Cathode - Pb | PbO2 Choose the correct answer from the options given below :

${\mathrm{O}}_2$ gas will be evolved as a product of electrolysis of : (A) an aqueous solution of ${\mathrm{AgNO}}_3$ using silver electrodes. (B) an aqueous solution of ${\mathrm{AgNO}}_3$ using platinum electrodes. (C) a dilute solution of ${\mathrm{H}}_2{\mathrm{SO}}_4$ using platinum electrodes. (D) a high concentration solution of ${\mathrm{H}}_2{\mathrm{SO}}_4$ using platinum electrodes. Choose the correct answer from the options given below :

For a Mg | Mg2+ (aq) || Ag+ (aq) | Ag the correct Nernst Equation is :

The molar conductivity of a weak electrolyte when plotted against the square root of its concentration, which of the following is expected to be observed?

The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidising capacity.

Which of the following electrolyte can be used to obtain ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8$ by the process of electrolysis ?

A solution of aluminium chloride is electrolysed for 30 minutes using a current of 2 A . The amount of the aluminium deposited at the cathode is __________ . [Given : molar mass of aluminium and chlorine are $27\mathrm{g}{\mathrm{mol}}^{-1}$ and $35.5\mathrm{g}{\mathrm{mol}}^{-1}$ respectively. Faraday constant $=96500\mathrm{C}{\mathrm{mol}}^{-1}]$

Given below are two statements : Statement (I) : Corrosion is an electrochemical phenomenon in which pure metal acts as an anode and impure metal as a cathode. Statement (II) : The rate of corrosion is more in alkaline medium than in acidic medium. In the light of the above statements, choose the correct answer from the options given below :

$${\mathrm{FeO}}_4^{2-}\stackrel{+2.0\mathrm{V}}{\to }{\mathrm{Fe}}^{3+}\stackrel{0.8\mathrm{V}}{\to }{\mathrm{Fe}}^{2+}\stackrel{-0.5\mathrm{V}}{\to }{\mathrm{Fe}}^0$$ In the above diagram, the standard electrode potentials are given in volts (over the arrow). The value of ${\mathrm{E}}_{{\mathrm{FeO}}_4^{2-}/{\mathrm{Fe}}^{2+}}$ is :