The product formed from the following reaction sequence is:

Gadolinium has a low value of third ionisation enthalpy because of

Which one is not a correct mathematical equation for Dalton's Law of partial pressure? Here $p$ is the total pressure of a gaseous mixture

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).$\newline$Assertion (A): In a particular point defect, an ionic solid is electrically neutral, even if a few of its cations are missing from its unit cells.$\\$Reason (R): In an ionic solid, Frenkel defect arises due to the dislocation of cation from its lattice site to an interstitial site, maintaining overall electrical neutrality.

The pH of the solution containing $50$ mL each of $0.10 M$ sodium acetate and $0.01 M$ acetic acid is$\\$(Given $pK_a$ of $CH_3COOH = 4.57)$

Identify the incorrect statement from the following

Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of the electron-withdrawing nitro group.$\\$Statement II: o-nitrophenol, m-nitrophenol, and p-nitrophenol will have the same acidic strength as they have one nitro group attached to the phenolic ring.$\\$Choose the most appropriate answer from the options given below:

What mass of $95\%$ pure $CaCO_3$ will be required to neutralize $50$ mL of $0.5 M$ HCl solution according to the following reaction?$\\ CaCO_3 (s) + 2HCl (aq) \rightarrow CaCl_2 (aq) + CO_2 (g) + 2H_2O (l)$

The IUPAC name of an element with atomic number $119$ is:

Choose the correct statement:

Statement I: In the coagulation of a negative sol, the flocculating power of the three given ions is in the order $Al^{3+} > Ba^{2+} > Na^+. \\$Statement II: In the coagulation of a positive sol, the flocculating power of the three given salts is in the order $NaCl > Na_2SO_4 > Na_3PO_4. \\$Choose the most appropriate answer from the options given below:

Which of the following p-V curves represents maximum work done?

Statement I: Primary aliphatic amines react with HNO$_2$ to give unstable diazonium salts.$\\$Statement II: Primary aromatic amines react with HNO$_2$ to form diazonium salts which are stable even above $300K. \\$Choose the most appropriate answer from the options given below:

Which amongst the following is an incorrect statement?

In the reaction sequence:$\\$RMgX + CO$_2 \rightarrow Y \xrightarrow{H_2O} RCOOH,$ the compound $Y$ is:

Which statement regarding polymers is not correct?

Given below are half-cell reactions:$\\$MnO$_4^- + 8H^+ + 5e^- \rightarrow$Mn$^{2+} + 4H_2O, \quad E^\circ_{Mn^{2+}/MnO_4^-} = -1.510 V \\$O$_2 + 2H^+ + 2e^- \rightarrow H_2O, \quad E^\circ_{0_2/H_2O} = +1.223 V \\$Will the permanganate ion, MnO$_4^-$ liberate O$_2$ from water in the presence of an acid?

The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?

The incorrect statement regarding enzymes is:

The IUPAC name of the complex $[Ag(H_2O)_2][Ag(CN)_2]$ is:

Match List - I with List - II.

Amongst the following, which one will have maximum 'lone pair-lone pair' electron repulsions?

At 298 K, the standard electrode potentials of $$Cu$^{2+}/$Cu$,$Zn$^{2+}/$Zn$,$Fe$^{2+}/$Fe$$ and $$Ag$^{+}/$Ag$$ are 0.34 V, -0.76 V, -0.44 V and 0.80 V, respectively.$\\$On the basis of standard electrode potential, predict which of the following reactions cannot occur?

Identify the incorrect statement from the following.

In a one molal solution that contains 0.5 mole of a solute, there is:

Assertion (A): ICl is more reactive than I$_2. \\$Reason (R): I-Cl bond is weaker than I-I bond.$\\$Choose the most appropriate answer from the options given below:

Which of the following compounds is not an aromatic compound?

Statement I: The boiling points of the following hydrides of group 16 elements increase in the order:$\\ H_2O < H_2S < H_2Se < H_2Te \\$Statement II: The boiling points of these hydrides increase with an increase in molar mass.$\\$Choose the most appropriate answer from the options given below:

Match List-I with List-II:

Which of the following sequence of reactions is suitable to synthesize chlorobenzene?

Statement I: The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole-dipole interactions.$\\$Statement II: The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of hydrogen bonding.$\\$Choose the most appropriate answer from the options given below:

Match List - I with List- II.

The incorrect statement regarding chirality is:

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

Which of the following statements is not correct about diborane?

The given graph is a representation of kinetics of a reaction. The y and x axes for zero and first-order reactions, respectively, are:

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

A $10.0$ L flask contains $64 g$ of oxygen at $27^\circ$C. (Assume O$_2$ gas is behaving ideally). The pressure inside the flask in bar is (Given $R = 0.0831$ L bar K$^{-1}$ mol$^{-1}$)

For a first-order reaction $A \rightarrow$ Products, the initial concentration of $A$ is $0.1$ M, which becomes $0.001$ M after $5$ minutes. The rate constant for the reaction in $$min$^{-1}$ is:

The order of energy absorbed which is responsible for the color of complexes is given for:$\\ (A) [$Ni(H$_2O)_2($en$)_2]^{2+} \\ (B) [$Ni(H$_2O)_4($en$)]^{2+} \\ (C) [$Ni(en)$_3]^{2+}$. Choose the correct order:

$3O_2(g) \rightleftharpoons 2O_3(g)$. For the above reaction at $298$ K, $K_c$ is found to be $3.0 \times 10^{-59}$. If the concentration of $O_2$ at equilibrium is $0.040$ M, then the concentration of $O_3$ in M is:

Find the emf of the cell:$\\$Ni(s) + 2Ag$^+(0.001 M) \rightarrow$Ni$^{2+} (0.001 M) + 2Ag(s) \\$(Given that $E^\circ_{cell} = 1.05$ V, $\frac{2.303RT}{F} = 0.059$ at 298 K)

Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?

The correct IUPAC name of the following compound is:

If the radius of the second Bohr orbit of the He$^+$ ion is $105.8$ pm, what is the radius of the third Bohr orbit of the Li$^{2+}$ ion?

Compound X on reaction with O$_3$ followed by Zn/H$_2O$ gives formaldehyde and 2-methylpropanal as products. The compound X is:

In the neutral or faintly alkaline medium, KMnO$_4$ oxidizes iodide into iodate. The change in oxidation state of manganese in this reaction is from:

The pollution due to oxides of sulphur gets enhanced due to the presence of:$\\ (a)$Particulate matter$\\ (b)$Ozone$\\ (c)$Hydrocarbons$\\ (d)$Hydrogen peroxide$. \\$Choose the most appropriate answer from the options given below:

Given below are two statements:$\\$Statement I: In Lucas test, primary, secondary, and tertiary alcohols are distinguished on the basis of their reactivity with conc. HCl + ZnCl$_2,$ known as Lucas Reagent.$\\$Statement II: Primary alcohols are most reactive and immediately produce turbidity at room temperature on reaction with Lucas Reagent.$\\$In the light of the above statements, choose the most appropriate answer from the options given below:

Copper crystallizes in an fcc unit cell with a cell edge length of $3.608 \times 10^{-8}$ cm. The density of copper is $8.92$ g cm$^{-3}.$ Calculate the atomic mass of copper.