Based on the standard electrode potential given in the table

Half-cell reaction	(E./V) at 25.C)
\(F _2(g)+2 e ^{-} \rightarrow 2 F^{-}\)	\(2.87\)
\(NO _3^{-}+4 H ^{+}+3 e ^{-} \rightarrow NO ( g )+2 H _2 O\)	\(0.97\)
\(Cu ^{2+}+2 e ^{-} \rightarrow Cu ( s )\)	\(0.34\)
\(2 H ^{+}+2 e ^{-} \rightarrow H _2(g)\)	0.00
\(Zn ^{2+}+2 e ^{-} \rightarrow Zn ( s )\)	\(-0.76\)
\(L i ^{+}+ e ^{-} \rightarrow L i ( s )\)	\(-3.05\)

Choose the wrong / incorrect statement from the options given below:

Match List I with List II

LIST I	LIST II
A. Multimolecular colloids	I. Nitro cellulose
B. Macromolecular colloids	II. Sulphur molecule
C. Associated colloids	III. Nylon
D. Colloidion	IV. Soaps

Choose the correct answer from the options given below:

\(\text{CH}_3-\text{CH}(\text{Br}) - \text{CH}_2 - \text{CH}_3 \xrightarrow{\text{alc. KOH}} \text{A} \xrightarrow{\text{Br}_2} \text{CH}_3-\text{CH}(\text{Br}) - \text{CH}(\text{Br}) - \text{CH}_3 \text{(B)}\)
\(\text{(B)} \xrightarrow{\text{alc. KOH}} \text{CH}_3-\text{C} = \text{C} – \text{CH}_3 \text{(C)}\)
\(\text{(C)} \xrightarrow{\text{Hg}^{2+}/\text{H}^+\atop \text{H}_2\text{O}} \text{D}\)
A and D respectively are :

A compound is formed by two elements P and Q. Atoms of the element Q (anions) make hcp lattice and those of element P (cations) occupies \(\frac{1}{8}\)th of the tetrahedral voids. What is the formula of the compound?

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Optically active polyhydroxy aldehydes or ketones or molecules which provide such units on hydrolysis are called carbohydrates. They can be broadly classified as monosaccharides, disaccharides and polysaccharides depending on their behavior towards hydrolysis. They are also classified as reducing or non-reducing sugars. Another class of biomolecules is proteins which are polymers of twenty different amino acids linked by peptide bonds. Amino acids can be classified as acidic, basic or neutral depending on the relative number of amino and carboxyl groups in their
molecule. The essential amino acids cannot be synthesized by our body and hence must be provided through diet. Nucleic acids are the polymers of nucleotides which in turn consist of a base, pentose sugar and phosphate. There are two types of nucleic acids namely, DNA and RNA which differ in the composition of sugar and a base
The sugar moiety in DNA and RNA molecules, respectively, are

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Aldehydes and ketones are important organic compounds prepared mainly by oxidation of alcohols. Primary alcohols give aldehyde and secondary alcohols yield ketones. Aldehydes can also be formed by partial reduction of acid chlorides, reduction of esters or by Gattermann-Koch reaction. Ketones are prepared by Friedel-Craft's acylation, hydration of alkyne and reaction of Grignard's reagent with nitriles. Chemically, aldehydes and ketones are reactive in nature due to the carbonyl group and undergo nucleophilic addition reactions. Aldehydes are more reactive than ketones and can be oxidized to carboxylic acids, while both can be reduced to alcohols or hydrocarbons and exhibit condensation reaction.
When two moles of benzaldehyde are heated with concentrated NaOH solution, the product/s obtained is/are:

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Ethers with the general formula \(C _n H _{2 n+2} O\) and functional group C-O-C may be divided as symmetrical and unsymmetrical.
Lower symmetrical ether may be obtained by the dehydration of alcohols at low temperatures in the presence of protic acids,
such as \(H _2 SO _4\) and \(H _3 PO _4\) whereas at high temperature intramolecular dehydration takes place.
Formation of ether from primary alcohols is also accompanied by the formation of small amount of alkenes.
Due to the steric hinderance, secondary and tertiary alcohols undergo elimination reaction rather than substitution reaction yielding alkene as major product. Ethers can also be obtained by heating alkyl halides with sodium or potassium alkoxides.
Substituted Ethers (secondary & tertiary) can also be prepared using this method.
If primary halides are replaced with secondary and tertiary halides, alkenes are the major products. The compound with the lowest boiling point is

\(\int e^{2 x^3+2 \log e^x} d x=\)

Electric field at a point due to a uniformly charged infinite plane sheet is

Two parallel conductors each carrying a current of 10 mA in opposite directions are placed at a distance 10 cm apart. The force per unit length between two conductors is

Match List I with List II:

List-I	List-ll
A. \(Fe ^{2+}\)	I. 2.84 BM
B. \(Ni ^{2+}\)	II. 0.00 BM
C. \(Mn ^{2+}\)	III. 4.90 BM
D. \(Zn ^{2+}\)	IV. 5.92 BM

Choose the correct answer from the options given below :

Two identical conducting wires, A and B of different materials, are joined in series across a battery. If the number density of electrons in A is thrice that in B, then the ratio of drift velocity of electrons in the two wires is

If \(A=\left[\begin{array}{ccc}1 & 2 & 3 \\ -4 & -5 & -6\end{array}\right], \quad B=\left[\begin{array}{cc}2 & -3 \\ 4 & -5 \\ 2 & -1\end{array}\right]\) and \(B A=\left[b_{i j}\right]\), then \(\left(b_{23}-b_{31}\right)\) is equal to