KCET 2020

Which of the following on heating gives an ether as major products?
(P) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}+\mathrm{CH}_3 \mathrm{ONa}\)
(Q) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{ONa}+\mathrm{CH}_3 \mathrm{Br}\)
(R) $$\left(...

The steps involved in the conversion of propan -2-ol to propan -1-ol are in the order

The product 'P' is

The carbonyl compound that does not undergo aldol condensation is

With regard to photoelectric effect, identify the correct statement among the following.

\(\mathrm{C}_1-\mathrm{C}_4\) glycosidic bond is not found in

Hypothyroidism is caused by the deficiency of

Which one of the following vitamins is not stored in adipose tissue?

Bond angle is \(\mathrm{PH}_4^{+}\) is more than that of \(\mathrm{PH}_3\). This is because

The percentage of \(s\)-character in the hybrid orbitals of nitrogen in \(\mathrm{NO}_2^{+}, \mathrm{NO}_3^{-}\) respectively are

Which of the following has the lowest boiling point?

Incorrectly matched pair is

The formal charge on central oxygen atom in ozone is

For an elementary reaction \(2 A+3 B \rightarrow 4 C+D\) the rate of appearance of $C$ at time '\(T\)' is \(2.8 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~S}^{-1}\). Rate of disappearance of \(B\) at '\(t\)' $t$ will be

The rate constant of a reaction is given by \(k=P Z e^{-E_a / R T}\) under standard notation. In order to speed up the reaction, which of the following factors has to be decreased?

The time required for \(60 \%\) completion of a first order reaction is \(50 \mathrm{~min}\). The time required for \(93.6 \%\) completion of the same reaction will be

Prolonged exposure of chloroform in humans may cause damage to liver. It is due to the formation of the following compound.

Which of the following is not related to drug-enzyme interaction?

A food additive that acts as an antioxidant is

Hinsberg's reagent is

The final product for the reaction is

The coordination number of \(\mathrm{Fe}\) and \(\mathrm{Co}\) in the complex ions, \(\left.\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively

Give the IUPAC name of \(\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]\left[\mathrm{Pt} \mathrm{Cl}_4\right]\) is

Number of stereoisomers exhibited by \(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is

For \(\mathrm{Cu}_2 \mathrm{Cl}_2\) and \(\mathrm{CuCl}_2\) in aqueous medium, which of the following statement is correct?

Identify the set of paramagnetic ions among the following.

If an aqueous solution of \(\mathrm{NaF}\) is electrolysed between inert electrodes, the product obtained at anode is

Given \(E_{F{e^{3 + }}/F{e^{2 + }}}^o = + 0.76\,V\) and \(E_{\mathrm{I}_2 / \mathrm{I}^{-}}^0=+0.55 \mathrm{~V}\). The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is $$\left[\frac{...

The pair of electrolytes that posses same value for the constant \((A)\) in the Debye-Huckel-Onsager equation, \(\Lambda_m=\Lambda_m^{\circ}-A \sqrt{C}\) is

Which of the following is not a green house gas?

Which of the following is the strongest base?

Which of the following halide shows highest reactivity towards \(\mathrm{S}_{\mathrm{N}} 1\) reaction?

Identify 'X' in the following reaction.

The conjugate base of \(\mathrm{NH}_3\) is

Which of the following is not a pair of functional isomers?

In the reaction,

The number of possible isomers for the organic compound X is

Solute '\(X\)' dimerises in water to the extent of \(80\%\). 2.5g of '\(X\)' in \(100 \mathrm{~g}\) of water increases the boiling point by \(0.3^{\circ} \mathrm{C}\). The molar mass of 'X' is $$[K_b=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~m...

Which of the following pair of solutions is isotonic?

Copper is extracted from copper pyrites by

Function of potassium ethyl xanthate in froth floatation process is to make the ore

Sulphide ore on roasting gives a gas \(X\). \(X\) reacts with \(\mathrm{Cl}_2\) in the presence of activated charcoal to give \(Y\). \(Y\) is

Phosphorus pentachloride

Aqueous solution of a salt \((A)\) forms a dense white precipitate with \(\mathrm{BaCl}_2\) solution. The precipitate dissolves in dilute \(\mathrm{HCl}\) to produce a gas \((B)\) which decolourises acidified \(\mathrm{KMnO}_4\) solution.
$...

The last element of the \(p\)-block in 6 th period is represented by the outer most electronic configuration.

A Lewis acid '\(X\)' reacts with \(\mathrm{LiAlH}_4\) in ether medium to give a highly toxic gas. This gas when heated with \(\mathrm{NH}_3\) gives a compound commonly known as inorganic benzene. The gas is

Which of the following polymer has strongest intermolecular forces of attraction?

Which of the following monomers can undergo condensation polymerisation?

In which of the following cases a chemical reaction is possible?

The oxidation number of nitrogen atoms in \(\mathrm{NH}_4 \mathrm{NO}_3\) are

How many moles of acidified \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) is required to liberate 6 moles of \(\mathrm{I}_2\) from an aqueous solution of \(\mathrm{I}^{-}\)?