Given below are two statements : Statement I : The correct order of first ionization enthalpy values of $$\mathrm{Li},\mathrm{Na},\mathrm{F}$$ and $$\mathrm{Cl}$$ is $$\mathrm{Na}StatementII:Thecorrectorderofnegativeelectrongainenthalpyvaluesof$$\mathrm{Li}, \mathrm{Na}, \mathrm{F}$$and$$\mathrm{Cl}$$is$$\mathrm{Na} In the light of the above statements, 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-0pky{border-color:inherit;text-align:left;vertical-align:top} LIST I (Elements) LIST II (Properties in their respective groups) A. $$\mathrm{Cl},\mathrm{S}$$ I. Elements with highest electronegativity B. $$\mathrm{Ge},\mathrm{As}$$ II. Elements with largest atomic size C. $$\mathrm{Fr},\mathrm{Ra}$$ III. Elements which show properties of both metals and non-metal D. $$\mathrm{F},\mathrm{O}$$ IV. Elements with highest negative electron gain enthalpy Choose the correct answer from the options given below:

Given below are two statements: Statement I: In group 13, the stability of +1 oxidation state increases down the group. Statement II : The atomic size of gallium is greater than that of aluminium. In the light of the above statements, choose the most appropriate answer from the options given below :

The statement(s) that are correct about the species $${\mathrm{O}}^{2-},{\mathrm{F}}^{-},{\mathrm{Na}}^{+}$$ and $${\mathrm{Mg}}^{2+}$$. (A) All are isoelectronic (B) All have the same nuclear charge (C) $${\mathrm{O}}^{2-}$$ has the largest ionic radii (D) $${\mathrm{Mg}}^{2+}$$ has the smallest ionic radii Choose the most appropriate answer from the options given below :

Given below are two statements : Statement I : The metallic radius of $$\mathrm{Na}$$ is $$1.86{\mathrm{A}}^{\circ }$$ and the ionic radius of $${\mathrm{Na}}^{+}$$ is lesser than $$1.86{\mathrm{A}}^{\circ }$$ Statement II : Ions are always smaller in size than the corresponding elements. In the light of the above statements, choose the correct answer from the options given below :

The electron affinity value are negative for A. $$\mathrm{Be}\to {\mathrm{Be}}^{-}$$ B. $$\mathrm{N}\to {\mathrm{N}}^{-}$$ C. $$\mathrm{O}\to {\mathrm{O}}^{2-}$$ D. $$\mathrm{Na}\to {\mathrm{Na}}^{-}$$ E. $$\mathrm{Al}\to {\mathrm{Al}}^{-}$$ Choose the most appropriate 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) : Haloalkanes react with KCN to form alkyl cyanides as a main product while with $\mathrm{AgCN}$ form isocyanide as the main product. Reason (R) : $\mathrm{KCN}$ and $\mathrm{AgCN}$ both are highly ionic compounds. In the light of the above statements, choose the most appropriate answer from the options given below :

The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ;

Identify B formed in the reaction. $$\mathrm{Cl}-{\left({\mathrm{CH}}_2\right)}_4-\mathrm{Cl}\stackrel{\text{ excess }{\mathrm{NH}}_3}{\to }\mathrm{A}\stackrel{\mathrm{NaOH}}{\to }\mathrm{B}+{\mathrm{H}}_2\mathrm{O}+\mathrm{NaCl}$$

Which among the following halide/s will not show $${\mathrm{S}}_{\mathrm{N}}1$$ reaction: (A) $${\mathrm{H}}_2\mathrm{C}=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{Cl}$$ (B) $${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{Cl}$$ (C) (D) Choose the most appropriate answer from the options given below :

Identify A and B in the following reaction sequence.

The product (C) in the below mentioned reaction is : $${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{Br}\underset{\Delta }{\overset{{\mathrm{KOH}}_{(\text{alc) }}}{\to }}\mathrm{A}\stackrel{\mathrm{HBr}}{\to }\mathrm{B}\underset{{\mathrm{KOH}}_{(\mathrm{aq})}}{\overset{\Delta }{\to }}\mathrm{C}$$

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom. Reason R : Phenols react with halogen acids violently. In the light of the above statements, choose the most appropriate from the options given below :

Alkyl halide is converted into alkyl isocyanide by reaction with

Given below are two statements: Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow $${\mathrm{S}}_{\mathrm{N}}{}^2$$ mechanism. Statement - II: A secondary alkyl halide when treated with a large excess of ethanol follows $${\mathrm{S}}_{\mathrm{N}}{}^1$$ mechanism. In the light of the above statements, choose the most appropriate from the options given below:

Example of vinylic halide is :

The final product A, formed in the following multistep reaction sequence is :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : $${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2-\mathrm{Cl}$$ is an example of allyl halide. Reason (R) : Allyl halides are the compounds in which the halogen atom is attached to $${\mathrm{sp}}^2$$ hybridised carbon atom. In the light of the above statements, choose the most appropriate 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) : $${\mathrm{S}}_{\mathrm{N}}2$$ reaction of $${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{Br}$$ occurs more readily than the $${\mathrm{S}}_{\mathrm{N}}2$$ reaction of $${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Br}$$. Reason (R) : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring. In the light of the above statements, choose the most appropriate answer from the options given below :

In the following sequence of reaction, the major products B and C respectively are :