MHT CET 2021 22th September Evening Shift

Which among the following compounds has highest melting point?

Identify the product '\(\mathrm{B}\)' in the following series of reactions.
$$\text { Propan - 1-ol } \xrightarrow[623 \mathrm{~K}]{\mathrm{Al}_2 \mathrm{O}_3} \mathrm{~A} \xrightarrow[\text { ii) } \mathrm{H}_2 \mathrm{O}]{\text { i) conc ...

Ethers when dissolved in cold concentrated sulphuric acid forms

Identify the product '\(B\)' in following reaction.
\(2 \mathrm{CH}_3 \mathrm{CHO} \xrightarrow{\text { dil. } \mathrm{NaOH}} \mathrm{A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}\)

What is the energy of an electron in stationary state corresponding to \(\mathrm{n}=2\) ?

Which among the following is a double ring containing nitrogen base present in nucleic acids?

Identify the reagent R used in following conversion.
Glucose \(\mathrm{\buildrel R \over \longrightarrow}\) n - hexane

Which of the following alkenes on oxidation by \(\mathrm{KMnO}_4\) in dil. \(\mathrm{H}_2 \mathrm{SO}_4\) forms adipic acid?

Identify product '\(\mathrm{B}\)' in following reaction.
Cumene \(\xrightarrow[\Delta]{\mathrm{KMnO}_4, \mathrm{KOH}} \mathrm{A} \xrightarrow{\mathrm{H}_3 \mathrm{O}+} \mathrm{B}\)

Identify the molecule having dipole moment.

For the reaction \(\mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}\),
what is the relation between \(\frac{\mathrm{d}\left[\mathrm{N}_2\right]}{\mathrm{dt}}\) and $$\frac{\mathrm{d}\left[...

What is rate constant of a first order reaction if 0.08 mole of reactant reduces to 0.02 mole in 23.03 minute?

Which of the following statements is NOT true for a reaction having rate law \(\mathrm{r}=\mathrm{k}\left[\mathrm{H}_2\right]\left[\mathrm{I}_2\right]\) ?

Conversion of benzene diazonium chloride to chlorobenzene in presence of \(\mathrm{CuCl} / \mathrm{HCl}\) is known as

Identify compound from following having highest basic strength.

Identify homoleptic complex from following.

Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}\) is \(\underline{\text { NOT }}\) true?

Which element from following lanthanoids has half-filled \(\mathrm{f}\)- orbital in observed and expected electronic configuration?

Electrical conductance due to all the ions in \(1 \mathrm{~cm}^3\) of given solution is called as

What is the conductivity of \(0.02 \mathrm{~M} \mathrm{~KCl}\) solution if cell constant is \(1.29 \mathrm{~cm}^{-1}\) with resistance 645 \(\Omega\) ?

How many Faraday of electricity is required to deposit \(0.8 \mathrm{~g}\) of calcium at cathode by the electrolysis of \(\mathrm{CaCl}_2\) ?
(Molar mass of \(\mathrm{Ca}=40 \mathrm{~g} \mathrm{~mol}^{-1}\))

Which among following functional groups exhibits \(-\mathrm{R}\) effect?

Identify lowest positive charge developed (indicated by \(\partial, \partial_1, \partial_2, \partial_3\)) due to inductive effect in following compounds.
$$\mathrm{C{H_3} - \mathop {C{H_2}}\limits^{{\delta _3}} \to \mathop {C{H_2}}\limits^...

The major product obtained in the following reaction is Chlorobenzene + chlorine \(\xrightarrow[\mathrm{FeCl}_3]{\text { Anhydrous }}\) product (Major)

The major product obtained in the following reaction is

Which of the following alkyl halide is treated with sodium metal to obtain \(2,2,3,3\) - tetramethyl butane?

Pure dihydrogen \((99.5 \%)\) is obtained by the electrolysis of

Solubility product of \(\mathrm{AgBr}\) is \(4.9 \times 10^{-13}\). What is its solubility?

Which of the following is NOT a correct mathematical equation for Ostwald dilution law?

A weak monobasic acid is \(10 \%\) dissociated in \(0.05 \mathrm{~M}\) solution. What is its percentage dissociation in \(0.10 \mathrm{~M}\) solution?

Which of the following is likely to undergo racemization during alkaline hydrolysis?

Which of the following formulae is used to obtain depression in freezing point?

5 g sucrose (molar mass = 342) is dissolved in 100 g of solvent, decreases the freezing point by 2.15 K. What is cryoscopic constant of solvent?

What is Henry's law constant if solubility of a gas in water at \(298 \mathrm{~K}\) and 1 bar pressure is \(7\times10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}\) ?

Which element from following is radioactive?

Which among the following compounds in NOT a colourless gas?

Identify use of argon from following.

Identify the polymer used in making floor tiles.

Which of the following is an example of copolymer?

Buna-S is obtained from

Identify reducing agent in following reaction
\(\mathrm{H}_2 \mathrm{O}_{2(\mathrm{ag})}+\mathrm{ClO}_{4(\mathrm{aq})}^{-} \rightarrow \mathrm{ClO}_{2(\mathrm{aq})}^{-}+\mathrm{O}_{2(\mathrm{g})}\)

How many tetrahedral voids are present in 0.4 mole of a compound that forms hcp structure?

How many atoms of niobium are present in \(2.43 \mathrm{~g}\) if it forms bcc structure with density \(9 \mathrm{~g} \mathrm{~cm}^{-3}\) and volume of unit cell \(2.7 \times 10^{-23} \mathrm{~cm}^3\) ?

Identify the type of unit cell that has particles at the centre of each face in addition to the particles at eight corners of a cube?

How many moles of urea are present in 5.4 g ? (Molar mass = 60)

The volume of a gas at \(0^{\circ} \mathrm{C}\) is \(2 \mathrm{~dm}^3\). What is its volume if temperature is decreased by \(272^{\circ} \mathrm{C}\) ?

Identify the correct decreasing order of precipitation power of flocculating ion added, from following.

What is the difference between \(\Delta H\) and \(\Delta \mathrm{U}\) for reaction given below at \(298 \mathrm{~K}\) ?
(\(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\)
$$2 \mathrm{C}_6 \mathrm{H}_{6(\ell)}+15 \mathrm{O}_{2(\mathrm...

What is enthalpy of formation of \(\mathrm{NH}_3\) if bond enthalpies are as \((\mathrm{N} \equiv \mathrm{N})=941 \mathrm{~kJ},(\mathrm{H}-\mathrm{H})=436 \mathrm{~kJ},(\mathrm{N}-\mathrm{H})=389 \mathrm{~kJ}\) ?

Formation of \(\mathrm{NO}_{2(\mathrm{g})}\) from \(\mathrm{N}_{2(\mathrm{g})}\) and \(\mathrm{O}_{2(\mathrm{g})}\) is an endothermic process. Which of the following is true for this reaction?