NTA JEE Main 2025 April 4th Shift 2

The correct order of basicity for the following molecules is :

The incorrect relationship in the following pairs in relation to ionisation enthalpies is :

Which among the following compounds give yellow solid when reacted with NaOI/NaOH?

Choose the correct answer from the options given below :

A dipeptide, "x" on complete hydrolysis gives "y" and "z". "y" on treatment with aq. HNO$$_2$$ produces lactic acid. On the other hand "z" on heating gives a cyclic molecule.

Based on the information given, the dipeptide X is:

In which pairs, the first ion is more stable than the second?

Given below are two statements :
Statement (I) : Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction.
Statement (II) : In alcoholic potassium hydroxide, alkyl chlorides form alkenes by abstracting the hydrogen from the $$\beta$$-carbon.
In the light of the above statements, choose the most appropriate answer  from the option given  below : 

Given below are two statements :
Statement (I) : Molal depression constant $$K_f$$ is given by $$\frac{M_1 R T_f}{\Delta S_{fus}}$$, where symbols have their usual meaning.
Statement (II) : $$K_f$$ for benzene is less than the $$K_f$$ for water.

In the light of the above statements, choose the most appropriate answer from the options given below :

The IUPAC name of the following compound is :

Match List-I (Separation of) with List-II (Separation Technique) :

Choose the correct answer from the options given below : 

A toxic compound "A" when reacted with NaCN in aqueous acidic medium yields an edible cooking component and food preservative 'B'. "B" is converted to "C" by diborane and can be used as an additive to petrol to reduce emission. "C" upon reaction with oleum at $$140^{\circ}$$ C yields an inhalable anesthetic "D". Identify "A", "B", "C" and "D", respectively.