JEE Advanced 2021 Paper 1 Online

In the reaction given below, the total number of atoms having sp2 hybridization in the major product P is _________.

Among the following, the conformation that corresponds to the most stable conformation of meso-butane-2,3-diol is

The maximum number of possible isomers (including stereoisomers) which may be formed on mono-bromination of 1-methylcyclohex-1-ene using Br2 and UV light is ___________.

Given : The compound(s), which on reaction with HNO3 will give the product having degree of rotation, [\(\alpha\)]D = \(-\)52.7\(^\circ\) is (are)

The reaction of Q with PhSNa yields an organic compound (major product) that gives positive Carius test on treatment with Na2O2 followed by addition of BaCl2. The correct option(s) for Q is (are)

The calculated spin only magnetic moments of [
Cr(NH3)6]3+ and [CuF6]3\(-\) in BM, respectively, are(Atomic numbers of Cr and Cu are 24 and 29, respectively)

The total number of possible isomers for [Pt(NH3)4Cl2]Br2 is ______.

The major product formed in the following reaction of

For the following reaction scheme, percentage yields are given along the arrow:x g and y g are mass of R and U, respectively.(Use : Molar mass (in g mol\(-\)1) of H, C and O as 1, 12 and 16, respectively)The value of x is ________.

The value of y is ________.

The correct statement(s) related to the metal extraction processes is (are) :

A mixture of two salts is used to prepare a solution S, which gives the following results :The correct option(s) for the salt mixture is (are)

For the given close packed structure of a salt made of cation X and anion Y shown below (ions of only one face are shown for clarity), the packing fraction is approximately (packing fraction = \({{packing\,efficiency} \over {100}}\))

The value of x is ________.

The value of | y | is ________.

The correct statement(s) related to colloids is (are)

The value of standard enthalpy, \(\Delta\)Ho (in kJ mol\(-\)1) for the given reaction is _______.

The value of \(\Delta\)S\(\theta\) (in J K\(-\)1 mol\(-\)1) for the given reaction, at 1000 K is _________.

An ideal gas undergoes a reversible isothermal expansion from state I to state II followed by a reversible adiabatic expansion from state II to state III. The correct plot(s) representing the changes from state I to state III is (are)(p : p...