Given below are two statements : Statement I: The correct order in terms of bond dissociation enthalpy is $\mathrm{Cl}_{2}>\mathrm{Br}_{2}>\mathrm{F}_{2}>\mathrm{I}_{2}\\$ Statement II : The correct trend in the covalent character of the metal halides is $\left[\mathrm{SnCl}_{4}>\mathrm{SnCl}_{2}\right]$, $\left[\mathrm{PbCl}_{4}>\mathrm{PbCl}_{2}\right]$ and $\left[\mathrm{UF}_{4}>\mathrm{UF}_{6}\right]\\$ In the light of the above statements, choose the correct answer from the options given below :

A substance ' X ' ( 1.5 g ) dissolved in 150 g of a solvent ' Y ' (molar mass $=300 \mathrm{~g} \mathrm{~mol}^{-1}$ ) led to an elevation of the boiling point by 0.5 K . The relative lowering in the vapour pressure of the solvent ' Y ' is . (Nearest integer) [Given : of the solvent Assume the solution to be dilute and no association or dissociation of X takes place in solution.

The correct order of reactivity of the following benzyl halides towards reaction with KCN is:

The correct statements are: A. Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed hydrolysis. B. During denaturation, secondary and tertiary structures of a protein are destroyed but primary structure remains intact. C. Nucleotides are joined together by glycosidic linkage between $\mathrm{C}_{1}$ and $\mathrm{C}_{4}$ carbons of the pentose sugar D. Quaternary structure of proteins represents overall folding of the polypeptide chain.\\ Choose the correct answer from the options given below:

The correct increasing order of $\mathrm{C}-\mathrm{H}(\mathrm{A})$, $\mathrm{C}-\mathrm{O}(\mathrm{B}), \mathrm{C}=\mathrm{O}(\mathrm{C})$ and bonds in terms of covalent bond length is:

The first and second ionization constants of $\mathrm{H}_{2} \mathrm{X}$ are $2.5 \times 10^{-8}$ and respectively. The concentration of in solution is . (Nearest Integer)

Aqueous HCl reacts with $\mathrm{MnO}_{2}(\mathrm{~s})$ to form $\mathrm{MnCl}_{2}(\mathrm{aq})$, and . What is the weight (in g ) of liberated when 8.7 g of is reacted with excess aqueous HCl solution ? (Given Molar mass in )

Decomposition of A is a first order reaction at $\mathrm{T}(\mathrm{K})$ and is given by $\mathrm{A}(\mathrm{g}) \rightarrow \mathrm{B}(\mathrm{g})+\mathrm{C}(\mathrm{g})$. In a closed 1 L vessel, 1 bar is allowed to decompose at . After 100 minutes, the total pressure was 1.5 bar . What is the rate constant (in ) of the reaction ? (

Consider the following data: $\\ \Delta_{\mathrm{f}} \mathrm{H}^{\Theta}($ methane, g Enthalpy of sublimation of graphite Dissociation enthalpy of The bond enthalpy of bond is given by:

The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is: $\\ \mathrm{CH}_{3} \mathrm{Br}+\mathrm{Nu}^{\Theta} \longrightarrow \mathrm{CH}_{3} \mathrm{Nu}+\mathrm{Br}^{\Theta}$

Consider the following spectral lines for atomic hydrogen: $\\$A. First line of Paschen series $\\$B. Second line of Balmer series $\\$C. Third line of Paschen series $\\$D. Fourth line of Bracket sereisThe correct arrangement of the above lines in ascending order of energy is:

Given below are two statements: Statement I: Crystal Field Stabilization Energy (CFSE) of $\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ is greater than that of Statement II: Potassium ferricyanide has a greater spin-only magnetic moment than sodium Ferrocyanide. In the light of the above statements, choose the correct answer from the options given below:

Given below are four compounds: (a) n-propyl choride (b) iso-propyl chloride (c) sec-butyl chloride (d) neo-pentyl chloride Percentage of carbon in the one which exhibits optical isomerism is:

Given below are two statements : Statement-I: Compound (X), shown below , dissolves in $\mathrm{NaHCO}_{3}$ solution and has two chiral Statement - II : Compound (Y), shown below, has two carbons with hybridization, one carbon with and one carbon with sp hybridization In the light of the above statements, choose the correct answer from the options given below :

Consider the above sequence of reactions. The number of bromine atom(s) in the final product (P) will be

The osmotic pressure of a living cell in 12 atm at 300 K . The strength of sodium chloride solution that is isotonic with the living cell at this temperature is $\_\_\_\_$ $\mathrm{g} \mathrm{L}^{-1}$. (Nearest integer) Given : Assume complete dissociation of NaCl (Given : Molar mass of Na and Cl are 23 and 35.5 respectively.)

By usual analysis, 1.00 g of compound $(\mathrm{X})$ gave 1.79 g of magnesium pyrophosphate. The percentage of phosphorus in compound $(\mathrm{X})$ is: (nearest integer)\\ (Given, molar mass in $\mathrm{g} \mathrm{mol}^{-1}: \mathrm{O}=16, \mathrm{Mg}=24$, )

Match List-I with List-II. $\\$IAMGE$\\$Choose the correct answer from the options given below:

Match List-I with List-II.

List-I	List-II
Pair of Compounds	Type of Isomers
A. 2-Methylpropene and but-1-ene	I. Stereoisomers
B. Cis-but-2-ene and trans-but-2-ene	II. Position isomers
C. 2-Butanol and diethyl ether	III. Chain isomers
D. But-1-ene and but-2-ene	IV. Functional group isomers

Identify the metal ions among $\mathrm{Co}^{2+}, \mathrm{Ni}^{2+}, \mathrm{Fe}^{2+}, \mathrm{V}^{3+}$ and having a spin-only magnetic moment value more than 3.0 BM . The sum of unpaired electrons present in the high spin octahedral complexes formed by those metal ions is