JEE Advanced 2021 Paper 2 Online

Correct match of the C-H bonds (shown in bold) in Column J with their BDE in Column K is
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For the following reactionCH4(g) + Cl2(g) \(\buildrel {light} \over \longrightarrow\) CH3Cl(g) + HCl (g)the correct statement is

For the following reaction,
\(2X + Y\buildrel k \over \longrightarrow P\) the rate of reaction is \({{d[P]} \over {dt}} = k[X]\). Two moles of X are mixed with one mole of Y to make 1.0 L of solution. At 50 s, 0.5 mole of Y is left in the ...

The reaction sequence(s) that would lead to o-xylene as the major product is(are)

Correct option(s) for the following sequence of reactions is(are)

Reaction of x g of Sn with HCl quantitatively produced a salt. Entire amount of the salt reacted with y g of nitrobenzene in the presence of required amount of HCl to produce 1.29 g of an organic salt (quantitatively).(Use Molar masses (in ...

Reaction of x g of Sn with HCl quantitatively produced a salt. Entire amount of the salt reacted with y g of nitrobenzene in the presence of required amount of HCl to produce 1.29 g of an organic salt (quantitatively).(Use Molar masses (in ...

The pair(s) of complexes wherein both exhibit tetrahedral geometry is(are)(Note : py = pyridine)Given : Atomic numbers of Fe, Co, Ni and Cu are 26, 27, 28 and 29, respectively)

Some standard electrode potentials at 298 K are given below :Pb2+ /Pb = \(-\)0.13 VNi2+ /Ni = \(-\) 0.24 VCd2+ /Cd = \(-\) 0.40 VFe2+ /Fe = \(-\) 0.44 VTo a solution containing 0.001 M of X2+ and 0.1 M of Y2+, the metal rods X and Y are in...

At 298 K, the limiting molar conductivity of a weak monobasic acid is 4 \(\times\) 102 S cm2 mol\(-\)1. At 298 K, for an aqueous solution of the acid the degree of dissociation is \(\alpha\) and the molar conductivity is y \(\times\) 102 S ...

At 298 K, the limiting molar conductivity of a weak monobasic acid is 4 \(\times\) 102 S cm2 mol\(-\)1. At 298 K, for an aqueous solution of the acid the degree of dissociation is \(\alpha\) and the molar conductivity is y \(\times\) 102 S ...

The correct statement(s) related to oxoacids of phosphorous is(are)

A sample (5.6 g) containing iron is completely dissolved in cold dilute HCl to prepare a 250 mL of solution. Titration of 25.0 mL of this solution requires 12.5 mL of 0.03 M KMnO4 solution to reach the end point. Number of moles of Fe2+ pre...

A sample (5.6 g) containing iron is completely dissolved in cold dilute HCl to prepare a 250 mL of solution. Titration of 25.0 mL of this solution requires 12.5 mL of 0.03 M KMnO4 solution to reach the end point. Number of moles of Fe2+ pre...

Ozonolysis of ClO2 produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is __________.

Precipitate X is

Among the following, the brown ring is due to the formation of

Consider a helium (He) atom that absorbs a photon of wavelength 330 nm. The change in the velocity (in cm s\(-\)1) of He atom after the photon absorption is __________.(Assume : Momentum is conserved when photon is absorbed.Use : Planck con...

One mole of an ideal gas at 900 K, undergoes two reversible processes, I followed by II, as shown below. If the work done by the gas in the two processes are same, the value of \(\ln {{{V_3}} \over {{V_2}}}\) is _________.(U : internal ener...