Question Bank Directory

Given below is a reaction sequence: [Reaction Sequence Missing]. The compounds A and C are respectively:

What is the correct order of acidity among the following compounds?

The largest freezing point depression among the following 0.10 m solutions is shown by:

For an ideal solution, the non-zero value will be for:

Which of the following alkanes cannot be made in good yield by Wurtz reaction?

Consider the following liquid-vapor equilibrium: Liquid ⇌ Vapour. Which of the following relations is correct?

The van't Hoff factor, $i$ for a compound which undergoes dissociation in one solvent and association in other solvent is respectively:

A $0.0020 \text{ m}$ aqueous solution of an ionic compound $\text{Co(NH}_3)_5(\text{NO}_2)\text{Cl}$ freezes at $-0.00732^\circ\text{C}$. Number of moles of ions which $1 \text{ mol}$ of ionic compound produces on being dissolved in water will be ($K_f = 1.86^\circ\text{C m}^{-1}$)

Consider the following reaction. The structure of the major reaction intermediate formed in the above reaction is-

A particle moving with velocity $\vec{v}$ is acted by three forces shown by the vector triangle PQR. The velocity of the particle will :

A 800 turn coil of effective area $0.05 \text{ m}^2$ is kept perpendicular to a magnetic field $5 \times 10^{-5} \text{ T}$. When the plane of the coil is rotated by $90^\circ$ around any of its coplanar axis in $0.1 \text{ s}$, the emf induced in the coil will be:

$p_A$ and $p_B$ are the vapour pressures of pure liquid components A and B, respectively, of an ideal binary solution. If $x_A$ represents the mole fraction of component A, the total pressure of the solution will be:

The linear molecule among the following is:

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth (1) Pharynx -> Oesophagus -> Crop -> Gizzard -> Ileum -> Colon -> Rectum (2) Pharynx -> Oesophagus -> Gizzard -> Crop -> Ileum -> Colon -> Rectum (3) Pharynx -> Oesophagus -> Gizzard -> Ileum -> Crop -> Colon -> Rectum (4) Pharynx -> Oesophagus -> Ileum -> Crop -> Gizzard -> Colon -> Rectum

Which of the following contains 0.5 moles of a solute in one molal solution?

Respiratory Quotient (RQ) value of tripalmitin is

Osmotic pressure is $0.0821 \text{ atm}$ at a temperature of $300 \text{ K}$. Find concentration in mole/litre:

Among the following, the reaction that proceeds through an electrophilic substitution, is:

A diamagnetic lanthanoid ion among the following is : (At. numbers: $\text{Ce} = 58$, $\text{Sm} = 62$, $\text{Eu} = 63$, $\text{Yb} = 70$)

BF_{3} is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are :