JEE (Advanced) 2020 Paper-1

A colorless aqueous solution contains nitrates of two metals, X and Y. When it was added to an aqueous solution of NaCl, a white precipitate was formed. This precipitate was found to be partly soluble in hot water to give a residue P and a solution Q. The residue P was soluble in aq. $$NH_{3}$$ and also in excess sodium thiosulfate. The hot solution Q gave a yellow precipitate with KI. The metals X and Y, respectively, are

Newman projections P, Q, R and S are shown below:

Which one of the following options represents identical molecules?

Which one of the following structures has the IUPAC name
3-ethynyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?

The Fischer projection of D-erythrose is shown below.

D-Erythrose and its isomers are listed as P, Q, R, and S in Column-I. Choose the correct relationship of P, Q, R, and S with D-erythrose from Column II.

In thermodynamics, the 𝑃 − 𝑉 work done is given by
$$w = - \int_{}^{} dV P_{ext}$$.
For a system undergoing a particular process, the work done is,
$$w = − \int_{}^{} dV \left(\frac{𝑅𝑇}{V - b} - \frac{a}{V^{2}}\right)$$
This equation is applicable to a

With respect to the compounds I-V, choose the correct statement(s).

In the reaction scheme shown below, Q, R, and S are the major products.

The correct structure of

Choose the correct statement(s) among the following:

With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).

The cubic unit cell structure of a compound containing cation M and anion X is shown below. When compared to the anion, the cation has smaller ionic radius. Choose the correct statement(s).