COMEDK 2021

Find the final product for the reaction

Reaction

find the product B.

The total number of nodes are given by

Which of the following series of transitions in the spectrum of hydrogen atom fall in visible region?

The Lyman series of hydrogen spectrum lies in which region

Carbon monoxide is poisonous to human beings because

Which one of the following sets of monosaccharides forms sucrose?

Which of the following amino acid (NH\(_2\)CHRCOOH) contains polar R group?

Among the following enzymes, which one is involved in the given below catalytic reaction?
\({C_6}{H_{12}}{O_6}(aq) \to 2{C_2}{H_5}OH(aq) + 2C{O_2}(g)\)

Xerophthalmia disease causes by which deficiency of vitamin?

Why, ketones and carboxylic acids have higher boiling point as compared to aldehydes?

Find the correct order of C\(-\)O bond length among CO, CO\(_3^{2-}\), CO\(_2\).

Which of the following pairs of ions in iso-electronic and iso-structural?

Find the compound which have both polar and non-polar covalent bonds.

In the equilibrium, \(AB\rightleftharpoons A+B\), if the equilibrium concentration of A is double, then equilibrium concentration of B will be

For the equilibrium,
2NOCl(g) \(\rightleftharpoons\) 2NO(g) + Cl\(_2\)(g),
the value of the equilibrium constant, \(K_C\) is 3.75 \(\times\) 10\(^{-6}\) at 1069 K. The value of \(K_p\) for the reaction at this temperature will be

In the chemical reaction,
N\(_2\) + 3H\(_2\) \(\rightleftharpoons\) 2NH\(_3\) at equilibrium point.

Determine the specific rate constant of the reaction. If the half-life period of a first order reaction is 1402 s.

Rate constant (K) of a reaction has least value at

For the reaction 2N\(_2\)O\(_5\) \(\to\) 4NO\(_2\) + O\(_2\), rate constant \(k\) is 4.48 \(\times\) 10\(^{-5}\) s\(^{-1}\) and the initial pressure is 600 atm. After 10 min, determine the final pressure of N\(_2\)O\(_5\).

Which of the following is used as a drug to reduce fever?

Arrange the following artificial Sweetening agents in order of increasing sweetness.
Aspartame, Saccharin, Sucralose, Alitame

Which of the following options represents the correct composition of dettol?

Which of the following is not an antacid?

The chemical formula of Hinsberg's reagent is

Which of the following is most stable?

Which type of ligand is EDTA?

The correct IUPAC name of the coordination compound K\(_3\)[Fe(CN)\(_5\)NO] is

An aqueous solution of X on addition of hydrogen peroxide in ice cold conditions gives blue colour to the ethereal layer. Then, X can be

In 3d-transmission series, which one has the least melting point?

Given that molar conductances for Ba(OH)\(_2\), BaCl\(_2\) and NH\(_4\)Cl are 523.28, 280.0 and 129.8 \(\Omega^{-1}\) cm\(^2\) mol\(^{-1}\) respectively. What is the molar conductivity (\(\Omega^{-1}\) cm\(^2\) mol\(^{-1}\)) of NH\(_4\)OH?

The specific conductivity of a solution containing 1.0 g of anhydrous BaCl\(_2\) in 200 cm\(^3\) of the solution has been found to be 0.0058 Scm\(^{-1}\). The molar and equivalent conductivity of the solution respectively are

Which of the following particulate matter is emitted from vehicles?

Arrange stability of the given carbon cation in decreasing order

The reaction \(\mathrm{ArN_2^ + C{l^ - }\buildrel {Cu/HCl} \over \longrightarrow ArCl + {N_2} + CuCl}\) is called as

Coupling reaction is an example of

The hydrocarbon that cannot be prepared effectively by Wurtz reaction

What is the product formed when benzene react with CO and HCl in presence of anhydrous AlCl\(_3\)?

What is the IUPAC name of following compound?

Under which of the following condition, the gases does not follow Henry's law?

Which of the following is correct mixture of azeotrope?

Which of the following is correct order of their increasing boiling points?

The reducing agent which is used to reduce iron oxide in blast furnace is

Arrange the hydrides of group 15 in correct decreasing order of reducing nature.

The increasing order of atomic radii of the following group 13 elements is

The oxidation number of Cr in CrO\(_5\) which has the following structure, is

For decolourisation of 1 mole of KMnO\(_4\), the moles of H\(_2\)O\(_2\) required is

Sodium metal crystallises in a body centred cubic lattice with a unit cell edge of 4.29 \(\mathop A\limits^o\). The radius of sodium atom is

How much part of any corner atom actually belongs to a particular unit cell?

The vacant space in bcc lattice cell is