Match List-I With List-II

LIST – I	LIST – II
(A) \(S _{ N } 1\) Reaction	(I) vic-dibromides
(B) Bromination of alkenes	(II) gem-dihalides
(C) Alkylidene halides	(III) racemisation
(D) Elimination of HX from alkylhalide	(IV) Saytzeff rule

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Among the following, which is the correct set of reducing agents for conversion of nitrobenzene into aniline?
(A) \(H _2 / Pd\)
(B) \(Sn + HCl\)
(C) \(Fe + HCl\)
(D) \(NaBH _4\)
Choose the correct answer from the options given below:

The amount of urea required to make a 500 mL solution of \(20 \%( w / w )\) concentration is

Match List-I With List-II

LIST – I (Transition metal ion)	LIST – II (Property)
(A) \(Mn ^{3+}\)	(I) \(3 d^6\), green
(B) \(Fe ^{2+}\)	(II) \(3 d^4\), violet
(C) \(Ti ^{4+}\)	(III) \(3 d^0\), colourless
(D) \(V ^{2+}\)	(IV) \(3 d^3\), violet

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Amongst the following, identify the condensation polymer/s:
(A)Bakelite
(B) Teflon
(C) Melamine formaldehyde resin
(D) Nylon-2 nylon-6
(E) Buna-S
Choose the correct answer from the options given below :

List-I	List-II
(A) Swarts Reaction	(I) \(C _6 H _5 NH _2+ NaNO _2+ HX + Cu _2 X _2 \rightarrow C _6 H _5 X + N _2\)
(B) Finkelstein Reaction	(II) \(2 R X + 2 N a \rightarrow R - R + 2 N a X\)
(C) Sandmeyer Reaction	(III) \(RX + AgF \rightarrow R - F + AgX\)
(D) Wurtz Reaction	(IV) \(R X + N a I \rightarrow R - I + N a X\)

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Read the passage carefully and answer the Questions
Carbonyl compounds such as aldehydes, ketones, and carboxylic acids play an important role in the biochemical process of plants and animal kingdom.
Many aldehydes and ketones find applications in dye, perfumery and other industries.
The carbonyl carbon stom is \(s p^2\)-hybridized forming three sigma and one pi-bond with oxygen.
C-O bonds are polar bond due to high electronegativity of oxygen than carbon.
Hence the carbonyl carbon behaves as an electrophilic center and oxygen as a nucleophilic centre.
Primary and secondary alcohols yield aldehydes and ketones respectively upon oxidation with variety of oxidizing agents.
The boiling points of aldehydes and ketones differ from hydrocarbons and ethers.
Aldehydes and ketones undergo nucleophilic addition reaction due to presence of electrophilic carbonyl carbon.
Nucleophile and a proton add across the carbon oxygen double bond.
The starting compound Y in the following reaction is
\(\text{Y}\) \(\xrightarrow{\text{oxidation}}\) \(\text{aldehyde}\) \(\xrightarrow{\text{oxidation}}\) \(\text{carboxylic acids}\)

Which of the following gives the correct order of stability constant in solution?

If \(\vec{a}, \vec{b}\) and \(\sqrt{3} \vec{a}+\vec{b}\) are unit vectors, then the angle between \(\vec{a}\) and \(\vec{b}\) is:

Let \(\left|\begin{array}{ll}3 & y \\ x & 1\end{array}\right|=\left|\begin{array}{ll}3 & 2 \\ 4 & 1\end{array}\right|\) and \(x, y\) are natural numbers, then the number of solutions for the system is :

Answer the question on basis of passage given below :
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by \(\text{-OH}\) group. The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers. Alcohols and phenol consist of two part, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic subtitution reactions.
Aspirin is an acetylation product of :

The half life of a radioactive nuclide is 20 hours. What fraction of original activity will remain after 80 hours ?

What mode of propagation is used for the Ultra high frequency range?