JEE (Advanced) 2019 Paper-1

Molar conductivity $$(\wedge_m)$$ of aqueous solution of sodium stearate, which behaves as a strong electrolyte, is recorded at varying concentrations (c) of sodium stearate. Which oneofthe following plots provides the correct representation of micelle formation in the solution?
(critical micelle concentration (CMC) is marked with an arrow in the figures

The correct order of acid strength of the following carboxylic acids is

A tin chloride Q undergoes the following reactions (not balanced)
$$Q + Cl^- \rightarrow X$$
$$Q + Me_3N \rightarrow Y$$
$$Q + CuCl_2 \rightarrow Z + CuCl$$
X is a monoanion having pyramidal geometry. Both Y and Z are neutral compounds. Choose the correct option(s)

Fusion of $$MnO_2$$ with KOH in presence of $$O_2$$ produces a salt W. Alkaline solution of W upon electrolytic oxidation yields another salt X. The manganese containing ions present in W and X, respectively, are Y and Z. Correct statement(s) is (are)

Choose the reaction(s) from the following options, for which the standard enthalpy of reaction is equal to the standard enthalpy of formation.

Which of the following statement(s) is (are) correct regarding the root mean square speed $$(\mu_{rms})$$ and average translational kinetic energy $$(\epsilon_{av})$$ of a molecule in a gas at equilibrium ?

Each of the following options contains a set of four molecules. Identify the option(s) where all four molecules possess permanent dipole moment at room temperature.

In the decay sequence

$$X_1, X_2, X_3 and X_4$$ are particles/radiation emitted by the respective isotopes. The correct option(s) is(are)

Which of the following statement(s) is (are) true?

Choose the correct option(s) for the following set of reactions