MHT CET 2024 15th May Morning Shift

 Which of the following compounds is NOT a phenol?

Ethers when dissolved in cold concentrated sulfuric acid forms,

Identify the reagent ' R ' used in the following reaction.
Ketone $\xrightarrow{\mathbf{R}}$ Semicarbazone

Aldol condensation reaction is

Find the number of electrons that generate 1 coulomb charge?

What is the total number of orbitals present in N shell?

Calculate the radius of first orbit of $\mathrm{Li}^{++}$.

How many amino acids are linked together by $(\mathrm{n}-1)$ amide bonds?

What is the number of amino acids present in single turn of $\alpha$-helix of protein?

Identify the product formed in the following reaction.
$\mathrm{CH_3CH_2MgBr}$ \(\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{ii)\,dil.\,HCl}^{i)\,dry\,ice/dry\,ether}}}\) $\mathrm{product}$

Which of the following molecules is an example of sp hybridization?

What is $\mathrm{O}-\mathrm{O}$ bond length in ozone molecule?

Which among the following statements is NOT true about rate constant?

A first order reaction takes 40 minute for $20 \%$ decomposition. Calculate its rate constant.

For the reaction
$$\begin{aligned}
& 2 \mathrm{NO}_{(\mathrm{s})}+2 \mathrm{H}_{2(\mathrm{~g})} \longrightarrow \mathrm{N}_{2(\mathrm{~g})}+2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{s})} \\\\
& \text { rate }=\mathrm{k}[\mathrm{NO}]^2\left[\mathr...

Which of the following is a primary amine?

What is the number of electrons lost by Cr in a complex $\left[\mathrm{Cr}(\mathrm{CO})_6\right]$ ?

Which from following is a correct stability order of complex formed by metal ions if the ligand remains same?

Which among the following is ferromagnetic substance?

Calculate the mass of ' Ca ' deposited at cathode by passing 0.8 ampere current through molten $\mathrm{CaCl}_2$ in 60 minutes.
[Molar mass of $\mathrm{Ca}=40 \mathrm{~g} \mathrm{~mol}^{-1}$ ]

The $\mathrm{E}_{\text {cell }}^{+}$of $\mathrm{Cu}_{(\mathrm{s})}\left|\mathrm{Cu}_{(\mathrm{1M})}^{++} \| \mathrm{Ag}_{(\mathrm{1M})}^{+}\right| \mathrm{Ag}_{(\mathrm{s})}$ is 0.647 volt. Calculate the $\mathrm{E}_{\mathrm{Ag}}^{\circ}$ i...

Identify the product obtained in the following reaction.
\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Br}+\mathrm{CH}_3 \mathrm{COOAg} \xrightarrow{\Delta} \mathrm{x}+\mathrm{AgBr}\)

What is the numerical difference in molar masses of second and third member of a homologous series?

Identify the reagent R used in following conversion?
tert-butyl bromide $\xrightarrow{\mathrm{R}}$ Isobutylene

Identify alkadiene molecule from following.

Conjugate acid of $\mathrm{NH}_2^{-}$and $\mathrm{NH}_3$ are respectively

A buffer solution is prepared by mixing $0.2 \mathrm{~M} \mathrm{~NH} \mathrm{O}_4 \mathrm{OH}$ and $1 \mathrm{~M} \mathrm{~NH}_4 \mathrm{Cl}$.
What is the pH value of buffer solution?
$\left(\right.$ Give $\left.\mathrm{pK}_{\mathrm{b}}=7....

The dissociation constant of a weak monobasic acid is $3.2 \times 10^{-4}$. Calculate the degree of dissociation in its 0.04 M solution.

What is the number of chiral carbon atoms present in 2-chloro-3,4-dimethylhexane?

Which of the following isomers of $\mathrm{C}_4 \mathrm{H}_9 \mathrm{Br}$ is a chiral molecule?

What is IUPAC name of following compound?

Calculate Henry's law constant if solubility of gas in water at $25^{\circ} \mathrm{C}$ is $5.14 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3}$ and partial pressure of the gas is 0.75 bar above solution.

What is the expected value of $\Delta T_f$ for $1.25 \mathrm{~m} \mathrm{CaCl}_2$ solution if 1.25 m sucrose solution has $\Delta \mathrm{T}_{\mathrm{f}}$ value x K ?

A solution of nonvolatile solute is obtained by dissolving 0.8 g in $0.3 \mathrm{dm}^3$ water has osmotic pressure 0.2 atm at 300 K . Calculate the molar mass of solute.
$$\left[\mathrm{R}=0.082 \mathrm{~atm} \mathrm{dm}^3 \mathrm{~K}^{-1} ...

Which from following is a mineral of copper?

What is the number of moles of water molecules present in a mole of carnallite?

Identify the alloy used for construction of gas turbine engines.

Which from following polymers (trade name) is used to obtain paints?

Identify the monomer used to obtain a polymer that resembles the wool.

Calculate the oxidation number of Cr in $\mathrm{CrO}_4^{2-}$ ion and $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ respectively.

Which from following compounds is obtained as by product in synthesis of sodium carbonate by Solvay process?

Calculate the total volume occupied by all atoms in simple cubic unit cell if radius of atom is $3 \times 10^{-8} \mathrm{~cm}$.

A compound is formed by two elements A and B. The atoms of element B form ccp structure. The atoms of A occupy $\frac{1}{3}$ of tetrahedral voids. What is the formula of the compound?

What is value of percent atom economy when reactants having sum of formula weight 78 u results in the formation of a product with formula weight 65 u ?

What is the percentage by mass of oxygen in NaOH ?
(Atomic mass of $\mathrm{Na}=23 \mathrm{u}, \mathrm{O}=16 \mathrm{u}, \mathrm{H}=1 \mathrm{u}$ )

Calculate the partial pressure exerted by dioxygen from a mixture of $32 \mathrm{~g} \mathrm{O}_2, 80 \mathrm{~g} \mathrm{Ar}$ (mol.mass 40 ) and 4 g dihydrogen $\left(\mathrm{P}_{\text {total }}=10 \mathrm{bar}\right)$.

Identify dispersed phase and dispersion medium in fog respectively.

Calculate the value of $\Delta G$ for the following reaction. $\mathrm{N}_2 \mathrm{O}_{4(\mathrm{~g})} \longrightarrow 2 \mathrm{NO}_{2(\mathrm{~g})}$
if $\Delta \mathrm{H}=57.44 \mathrm{~kJ}$ and $\Delta \mathrm{S}=176 \mathrm{~J} \mathrm...

Under similar conditions enthalpy of freezing is exactly opposite to

100 ml of $\mathrm{H}_{2(\mathrm{~g})}$ and 100 ml of $\mathrm{Cl}_{2(\mathrm{~g})}$ were allowed to react at 1 bar pressure as
\(\mathrm{H}_{2(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})} \longrightarrow 2 \mathrm{HCl}_{(\mathrm{g})}\)
What ...