The enthalpy of vaporization of benzene is \(+35.3 \mathrm{~kJ} / \mathrm{mol}\) at its boiling point, \(80^{\circ} \mathrm{C}\). The entropy change in the transition of vapour to liquid at its boiling point is

Consider the following sets of quantum numbers. Which of the below setting is not permissible arrangement of electrons in an atom?

Which among the following has highest \(\mathrm{pH}\) ?

An organic compound ' \(A\) ' burns with a sooty flame. It is negative towards Tollen's reagent test and positive for Borsche's reagent test. The compound ' \(A\) ' is

Which of the following aqueous solution has the highest freezing point?

Which of the following is a polyamide?

Match List-I with List-II for the following reaction pattern
Glucose \(\xrightarrow{\text { Reagent }}\) Product \(\longrightarrow\) Structural prediction
\begin{array}{|l|l|l|l|}\hline & \text{List - I (Reagents)} & & \text{List-II (Structural prediction)} \\\hline \text{a}. & \text{Acetic anhydride} & \text{(i)} & \text{Glucose has an aldehyde group} \\\hline \text{b.} & \text{Bromine water} & \text{(ii)} & \text{Glucose has a straight chain of six carbon atoms} \\\hline \text{c.} & \text{Hydroiodic acid} & \text{(iii)} & \text{Glucose has five hydroxyl group} \\\hline \text{d.} & \text{Hydrogen cyanide} & \text{(iv)} & \text{Glucose has a carbonyl group} \\\hline\end{array}

Choose the correct answer from the options given below.

The de-Broglie wavelength of a particle of kinetic energy \(K\) is \(\lambda\), the wavelength of the particle, if its kinetic energy \(\frac{K}{4}\) is

A body of mass 0.25 kg travels along a straight line from \(\mathrm{x}=0\) to \(\mathrm{x}=2 \mathrm{~m}\) with a speed \(\mathrm{v}=\mathrm{k} \mathrm{x}^{3 / 2}\) where k \(=2\) SI units. The work done by the net during this displacement is

The complex formed when \( \mathrm{Al}_{2} \mathrm{O}_{3} \) is leached from Bauxite using concentrated \( \mathrm{NaOH} \) solution
is,

How many number of atoms are there in a cube based unit cell, having one atom on each corner and 2 atoms on each body diagonal of cube?

Internal bleeding, muscular pain, blockage of the intestinal passage and anemia are some of the symptoms caused due to infection by

Darwinism explains all of the following except