In the determination of molar mass of A⁺B^- using a colligative property, what may be the value ofvan't Hoff factor if the solute is 50% dissociates?

Statement I: A solution of potassium chloride in water deviates from ideal behavior.
Statement II : The solute dissociates to give K⁺ and Cl^- ion which form strong ion dipole interaction with water molecules

Which of the following shows negative deviation from Raoult's law?

Statement I: Salt solution is an aqueous solution.
Statement II: If water is used as the solvent, the resultant solution is called an aqueous solution.

Hydrogen molecule (H₂) can be dissociated into hydrogen atoms (H). Which one of the following changes will not increase the number of atoms present at equilibrium?

In the reaction, 2NH₃(g) ⇌ N₂(g) + 3H₂(g)

Which of the following represents physical equilibrium?

Pick out the molecule having double bond.

Photo chemical smog formed in congested metropolitan cities mainly consists of ___________

CaO and NaCl have the same crystal structure and approximately the same radii. It U is the lattice energy of NaCl, the approximate lattice energy of CaO is _____________

The process depicted by the equation. \(H_2 {O_{(s)}}\rightarrow H_2 O_{(l)}\) ΔH= +1.43 kcal represents

Which one of the following depend on the mass of the system?

How many moles of water is present in 1L of water?

When beryllium carbide reacts with water, the product mainly formed is ______

The direct conversion of A \(\rightarrow\) B is difficult Hence it is carried out by the following paths shown:
\(\Delta\)( A\(\rightarrow\) C) = 50 e.u
\(\Delta\)(C\(\rightarrow\) D) = 30 e.u
\(\Delta\)(B\(\rightarrow\)D) = 20 e.u. where e.u. is entropy unit, then \(\Delta\)S (A-B) is ____________

The orbital diagram in which both the Pauli's exclusion principle and Hund's rule are violated is __________

Assertion: The spectrum of He⁺ is expected to be similar to that of hydrogen
Reason: He⁺  is also one electron system.

Which among the following is not an extensive property?

The effective nuclear charge across the period (from left to right)

Which of the following factor decreases across the period?

The compressibility factor is given by _____________

Consider the following statements
1. Gases are the most compressible state of matter.
2. Gases take the shape of the container.
3. The density of gases is higher than that of liquids
Which of the following statement(s) given above is/ are correct?

An ideal gas expands from the volume of 1 x 10^-3 m³ to 1 x 10^-2 m³ at 300 K against a constant pressure at 1 x 10⁵ Nm^-2. The work done is ______________

If temperature and volume of an ideal gas is increased to twice its values, the initial pressure P becomes _________

7.5 g of a gas occupies a volume of 5.6 litres at 0° C and 1 atm pressure. The gas is ________.