Which of the following is not an example of benzenoid compound?

Given below are two statements: one is labelled as Assertion A and, the other is labelled as Reason R. Assertion A: [6] Annulene, [8] Annulene and cis-[10] Annulene, are respectively aromatic, not-aromatic and aromatic. Reason R: Planarity is one of the requirements of aromatic systems. In the light of the above statements, choose the most appropriate answer from the options given below.

Match List - I with List - II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-1wig{font-weight:bold;text-align:left;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} List - I (Mixture) List - II (Purification Process) (A) Chloroform & Aniline (I) Steam distillation (B) Benzoic acid & Napthalene (II) Sublimation (C) Water & Aniline (III) Distillation (D) Napthalene & Sodium chloride (IV) Crystallisation Choose the correct answer from the options given below :

Match List - I with List - II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-fymr{border-color:inherit;font-weight:bold;text-align:left;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I List - II (A) (I) Spiro compound (B) (II) Aromatic compound (C) (III) Non-planar Heterocyclic compound (D) (IV) Bicyclo compound Choose the correct answer from the options given below :

Among the following marked proton of which compound shows lowest $${\mathrm{pK}}_{\mathrm{a}}$$ value?

Arrange the following in increasing order of reactivity towards nitration A. p-xylene B. bromobenzene C. mesitylene D. nitrobenzene E. benzene Choose the correct answer from the options given below

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion A : Thin layer chromatography is an adsorption chromatography. Reason R : A thin layer of silica gel is spread over a glass plate of suitable size in thin layer chromatography which acts as an adsorbent. In the light of the above statements, choose the correct answer from the options given below

Given below are two statements. Statement I : The compound is optically active. Statement II : is mirror image of above compound A. In the light of the above statement, choose the most appropriate answer from the options given below.

Match List-I with List-II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-1wig{font-weight:bold;text-align:left;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} List - I List - II (A) Spontaneous process (I) $$\Delta H<0$$ (B) Process with $$\Delta P=0$$, $$\Delta T=0$$ (II) $$\Delta G_{T,P}<0$$ (C) $$\Delta H_{reaction}$$ (III) Isothermal and isobaric process (D) Exothermic Process (IV) [Bond energies of molecules in reactants] $$-$$ [Bond energies of product molecules Choose the correct answer from the options given below :

At 25$${}^{\circ }$$C and 1 atm pressure, the enthalpy of combustion of benzene (I) and acetylene (g) are $$-$$ 3268 kJ mol$$-$$1 and $$-$$1300 kJ mol$$-$$1, respectively. The change in enthalpy for the reaction 3 C2H2(g) $$\to$$ C6H6 (I), is :

At 25$${}^{\circ }$$C and 1 atm pressure, the enthalpies of combustion are as given below : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} Substance $$H_2$$ C (graphite) $$C_2{H}_6(g)$$ {{{\Delta _c}{H^\Theta }} \over {kJ\,mo{l^{ - 1}}}} $$-286.0$$ $$-394.0$$ $$-1560.0$$ The enthalpy of formation of ethane is

$$\Delta$$G$${}^{\circ }$$ vs T plot for the formation of MgO, involving reaction 2Mg + O2 $$\to$$ 2MgO, will look like :

Which of the following relation is not correct?

Given below are two statements: One is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$ Assertion A : The reduction of a metal oxide is easier if the metal formed is in liquid state than solid state. Reason $$\mathbf{R}$$ : The value of $$\Delta G^{\Theta }$$ becomes more on negative side as entropy is higher in liquid state than solid state. In the light of the above statements, choose the most appropriate answer from the options given below

A white precipitate was formed when BaCl2 was added to water extract of an inorganic salt. Further, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in the inorganic salt is

During halogen test, sodium fusion extract is boiled with concentrated HNO3 to

In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?

During the qualitative analysis of salt with cation y2+, addition of a reagent (X) to alkaline solution of the salt gives a bright red precipitate. The reagent (X) and the cation (y2+) present respectively are :

Given below are two statements : Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution. Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction. Choose the most appropriate option :

Isobutyraldehyde on reaction with formaldehyde and K2CO3 gives compound 'A'. Compound 'A' reacts with KCN and yields compound 'B', which on hydrolysis gives a stable compound 'C'. The compound 'C' is