KCET 2023

$$\begin{aligned} & \mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH} \stackrel{\mathrm{PCC}}{\longrightarrow} \\\\ & \mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CHO} \end{aligned}$$
Hybridisation change involved at $$\mathr...

A better reagent to oxidise primary alcohols into aldehyde is

Y in the above reaction is

Compounds P and R in the following reaction are
$$\mathrm{C{H_3}CHO\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{(ii)\,{H_3}{O^ + }}^{(i)\,C{H_3}MgBr}} P\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Heat}^{conc.\,{H_2}S{O_4}}} Q\m...

The heating of phenyl methyl ether with HI produces an aromatic compound \(A\) which on treatment with conc. \(\mathrm{HNO}_3\) gives \(B\). \(A\) and \(B\) respectively are

The number of protons, neutrons and electrons in the ion \({ }_{16}^{32} \mathrm{~S}^{2-}\) respectively are

Sucrose is dextrorotatory but after hydrolysis the mixture show laevorotation, this is because of

The correct order of match between column X and column Y is

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Thyroxine produced in the thyroid gland is an iodinated derivative of

Receptors are proteins and crucial to body communication process. These receptors are embedded in

Which of the following statement is incorrect?

Dimerisation of solute molecules in low dielectric constant solvent is due to

At \(500 \mathrm{~K}\), for a reversible reaction \(A_2(g)+B_2(g) \rightleftharpoons 2 A B(g)\) in a closed container, \(K_C=2 \times 10^{-5}\). In the presence of catalyst, the equilibrium is attaining 10 times faster. The equilibrium cons...

In which one of the following reactions, rate constant has the unit \(\mathrm{mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\) ?

For a reaction, the value of rate constant at \(300 \mathrm{~K}\) is \(6.0 \times 10^5 \mathrm{~s}^{-1}\). The value of Arrhenius factor \(A\) at infinitely high temperature is

The rate constant \(k_1\) and \(k_2\) for two different reactions are \(10^{16} \times e^{-2000 / T}\) and \(10^{15} \times e^{-1000 / T}\) respectively. The temperature at which \(k_1=k_2\) is

Which one of the following is a non-narcotic analgesic?

Which one of the following gases converts haemoglobin into carboxy haemoglobin?

In the reaction,
\({C_6}{H_5}CN\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(ii)\,{H_3}{O^ + }}^{(i)\,SnC{l_2} + HCl}} X\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{}^{conc.\,KOH}} Y + Z\)
Formation of \(X, Y\) and \(Z\) are kno...

Aniline does not undergo

In the reaction,

P, Q and R respectively are

If a didentate ligand ethane-1, 2-diamine is progressively added in the molar ratio en : Ni :: 1: 1, 2 : 1, 3 : 1 to \(\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}\) aq solution, following co-ordination entities are f...

Which of the following is an organometallic compound

When \(\mathrm{FeCl}_3\) is added to excess of hot water gives a sol '\(X\)'. When \(\mathrm{FeCl}_3\) is added to \(\mathrm{NaOH}(a q)\) solution, gives sol '\(Y\)'
\(X\) and \(Y\) formed in the above processes respectively are

Which formula and name combination is incorrect?

Which of the following system in an octahedral complex has maximum unpaired electrons?

Which of the following is correct with respect to melting point of a transition element?

The resistance of \(0.1 \mathrm{~M}\) weak acid \(\mathrm{H} A\) in a conductivity cell is \(2 \times 10^3 \mathrm{~Ohm}\). The cell constant of the cell is \(0.78 ~\mathrm{C} \mathrm{~m}^{-1}\) and \(\lambda_{\mathrm{m}}^{\circ}\) of acid ...

During the electrolysis of brine, by using inert electrodes,

Consider the following 4 electrodes
$$\begin{aligned}
& \mathrm{A}: \mathrm{Ag}^{+}(0.0001 \mathrm{M}) / \mathrm{Ag}(s) ; \\
& \mathrm{B}: \mathrm{Ag}^{+}(0.1 \mathrm{M}) / \mathrm{Ag}(s) ; \\
& \mathrm{C}: \mathrm{Ag}^{+}(0.01 \mathrm{M}) ...

Among the following.

The set which represents aromatic species is

Identify A, B and C in the sequence.
$$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Br} \underset{\text { Alc. }}{\stackrel{\mathrm{KCN}}{\longrightarrow}} A \stackrel{\mathrm{LiAlH}_4}{\longrightarrow} B \stackrel{\mathrm{HNO}_2}{\longrightarrow} C...

The composition of water gas is

A \(30 \%\) solution of hydrogen peroxide is

A weak acid with \(\mathrm{p} K_a ~5.9\) and weak base with \(\mathrm{p} K_b ~5.8\) are mixed in equal proportions. \(\mathrm{pH}\) of the resulting solution is

A pair of compounds having the same boiling points are

IUPAC name of the compound is

The swelling in feet and ankles of an aged person due to sitting continuously for long hours during travel, is reduced by soaking the feet in warm salt water. This is because of

A sample of water is found to contain \(5.85 \%\) \(\left(\frac{w}{w}\right)\) of \(A B\) (molecular mass 58.5 ) and \(9.50 \%\) \(\left(\frac{w}{w}\right) X Y_2\) (molecular mass 95). Assuming \(80 \%\) ionisation of \(A B\) and \(60 \%\) ...

For the formation of which compound in Ellingham diagram \(\Delta G^{\circ}\) becomes more and more negative with increase in temperature?

What is the oxidation number of \(\mathrm{S}\) in \(\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_8\) ?

Which of the following compound does not give dinitrogen on heating?

The correct decreasing order of basicity of hydrides of group- 15 elements is

Which one of the following oxoacids of phosphorus can reduce \(\mathrm{AgNO}_3\) to metallic silver?

The correct order of first ionisation enthalpy of given elements is

A pair of amphoteric oxides is

In which one of the following pairs, both the elements does not have \((n-1) d^{10} n s^2\) configuration in its elementary state?

Which of the following monomers form biodegradable polymers ?

Match the List-I with List - I in the following.

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The reducing agent in the given equations
\(4 \mathrm{Ag}(s)+8 \mathrm{CN}^{-}(a q)+2 \mathrm{H}_2 \mathrm{O}(a q)+\mathrm{O}_2(g) \longrightarrow 4\left[\mathrm{Ag}(\mathrm{CN})_2\right]^{-}(a q)+4 \mathrm{OH}^{-}(a q)\)
$$2\left[\mathrm{...