MHT CET 2020 19th October Evening Shift

Which of the following reagents is used for the following conversion?
\(\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO} \longrightarrow \mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}\)

Which of the following compounds is obtained, when phenol react with bromine water?

Which of the following compound is highly reactive towards HCN?

Which of the following is a Stephen reaction?

Identify $A$ in the following reaction.
\(A+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \text { complex }\xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{OH}\)

Which of the following compounds reacts with ammonia to form urotropine?

Identify the enzyme $X$ in the following reaction
$\mathrm{H}_2 \mathrm{O}_2(\mathrm{aq}) \xrightarrow{x} \mathrm{H}_2 \mathrm{O}(l)+\frac{1}{2} \mathrm{O}_2(g)$

Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?

Which carbon atoms of $\alpha-D$ glucopyranose and $\beta$-D-fructofuranose respectively are linked together to form glycosidic linkage in sucrose?

Which of the following is correct decreasing order of the repulsive interaction of electron pairs in a molecule?

Which of the following molecules has a central atom with complete octet?

For first order reaction the concentration of reactant decreases from 0.2 to 0.1 M in 100 minutes. What is the rate constant of the reaction?

A first order reaction is $25 \%$ completed in 40 minutes. What is the rate constant $k$ for the reaction?

Which of the following is not an example of antiseptic drug?

Identify tranquiliser from the following?

Which of the following amines is most basic in nature in aqueous phase?

The end product $C$ of the following reaction is
\(\mathrm{C}_2 \mathrm{H}_5 \mathrm{NH}_2 \xrightarrow{\mathrm{HNO}_2} A \xrightarrow{\mathrm{PCl}_5} B \xrightarrow[\text { Alcohol }]{\mathrm{NH}_3} C\)

Which of the following compounds does not react with bromine in alkaline medium?

Identify the number of donor groups present in EDTA.

Which among the following is an ambidentate ligand?

Identify the correct decreasing order of densities of $d$-block elements.

How many Faradays of electricity is required to produce 4.8 g of Mg at cathode in the electrolysis of molten $\mathrm{MgCl}_2$ ?
(Molar mass of $\mathrm{Mg}=24 \mathrm{~g} / \mathrm{mol}$ )

What is the SI unit for electrochemical equivalent?

Number of electrons involved in the reaction, when 1 Faraday of electricity is passed through an electrolytic solution is

The Total number of electrons around the carbon atom of methyl free radical are

Which of the following is least reactive towards $\mathrm{S}_{\mathrm{N}} 1$ reactions?

What is the name of reaction involving replacement of diazonium group by chloride using cuprous (I) salt ?

What is the range of number of carbon atoms in alkanes found in paraffin wax?

Identify ' $B$ ' in the following reaction.
\(\mathrm{C}_2 \mathrm{H}_6 \xrightarrow[\mathrm{AlBr}_3]{\mathrm{Br}_2} A \xrightarrow[\Delta]{\mathrm{CH}_3 \mathrm{COOAg}} B\)

How many hydrogen atoms are surrounding each oxygen atom in structure of ice?

The vapour pressure of solvent decreases by 10 mm Hg , if mole fraction of non-volatile solute is 0.2 . Calculate vapour pressure of solvent.

Which of the following $0-10 \mathrm{~m}$ aqueous solutions will have maximum $\Delta T_f$ value?

If boiling point of urea solution is $100.18^{\circ} \mathrm{C}$ and $K_b$ for water is $0.512 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$, molality of solution is (Boiling point of water $=100^{\circ} \mathrm{C}$)

Which mineral among the following contains vanadium in it?

Which among the following sets of elements is present in chalcopyrite?

How many moles of gaseous oxygen at one atmosphere is considered for the reaction with element for plotting a graph in Ellingham diagram?

Which of the following molecular formula represents Marshall's acid?

What is the highest oxidation state possessed by phosphorus in it's oxyacids?

Which of the following oxyacids of sulphur contain four $\mathrm{S}=\mathrm{O}$ bonds?

Which of the following pairs of monomers is used for the preparation of dextron?

Which among the following polymers is used for making handles of cooker?

What is the oxidation number of Mn in MnO$^{2-}_4$ ion?

What is the formula of hydrolith?

An element crystallises in fcc type of unit cell. The volume of one unit cell is $24.99 \times 10^{-24} \mathrm{~cm}^3$ and density of the element $7.2 \mathrm{~g} \mathrm{~cm}^{-3}$. Calculate the number of unit cells in 36 g of pure sampl...

What is the percentage of unoccupied space in fcc unit cell?

Which among the following crystal lattices occupies all of the cubic holes by cations?

What is the unit of viscosity?

What is standard $N \equiv N$ bond enthalpy from following reaction,
$$\begin{aligned}
& \mathrm{N}_2(g)+3 \mathrm{H}_2(g) \longrightarrow 2 \mathrm{NH}_3(g) ; \Delta H^{\circ}=-83 \mathrm{~kJ} \\
& \left(\Delta H^{\circ}(\mathrm{H}-\mathrm...

For the reaction,
\(\mathrm{N}_2(g)+3 \mathrm{H}_2(g) \longrightarrow 2 \mathrm{NH}_3(g) ; \Delta H\)
is equal to

When 6.0 g of graphite reacts with dihydrogen to give methane gas, 37.4 kJ of heat is liberated. What is standard enthalpy of formation of $\mathrm{CH}_4(\mathrm{~g})$ ?