The osmotic pressure of a solution at 0°C is 2 atm. What will be its osmotic pressure at 819 K ?

Which of the following compounds comprise of a phenolic group?
(A) Salicylic acid
(B) Salicylaldehyde
(C) Cresol
(D) Catechol
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Which of the following statements is incorrect?

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Amines are classified as primary \(\left(1^{\circ}\right)\), secondary \(\left(2^{\circ}\right)\) and tertiary \(\left(3^{\circ}\right)\) depending upon the number of hydrogen atoms replaced by alkyl or aryl groups in ammonia molecules. Aliphatic amines are a stronger bases due to \(+I\) effect of an alkyl groups.
Intermolecular hydrogen bonding in primary and secondary amines affects the boiling points of amines. The intermolecular association is more in primary amines than in secondary amines as there are more number of hydrogen atoms available for hydrogen bond formation. Nitro compounds are reduced to amines by passing hydrogen gas in the presence of finely divided nickel, palladium or platinum and also by reduction with metals in an acidic medium. Gabriel synthesis is used for the preparation of primary amines. Primary amines react with nitrous acid to give unstable diazonium-salts which can be used to synthesize a variety of compounds.
Identify the amine possessing least basic strength

___________ solution of phenol in water acts as a disinfectant.

Match the lanthanoid property given in List-I with lanthanoid ion given in List-II

LIST – I (Lanthanoid property)	LIST – II (lon)
(A) Strong oxidant	(I) \(Lu ^{3+}\)
(B) Strong reducing agent	(II) \(La ^{3+}\)
(C) \([ Xe ] f^{14}\) configuration	(III) \(Ce ^{4+}\)
(D) largest ionic radii	(IV) \(Eu ^{2+}\)

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Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered.
The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
If the temperature is raised by \(10^{\circ} C\), then the rate of the reaction increases approximately by

A moving coil galvanometer has N number of turns in the coil with area A. It carries a current I and the magnetic field is B. The torque acting on the coil is :

Consider the following statements :
(A) \(\int_{-a}^a f(x) d x=2 \int_0^a f(x) d x\) if \(f(-x)=-f(x)\)
(B) \(\int_a^b f(x) d x=\int_a^b f(t) d t\)
(C) \(\int_0^a f(x) d x=\int_0^a f(x-a) d x\)
(D) \(\int_a^b f(x) d x=\int_a^b f(a+b-x) d x\)
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For the given five values 18, 25, 20, 36, 49, the three years moving averages are

The boiling point elevation constant \(K_b\) is also known as:

The speed of light in a medium depends on:

In a coil, a current of 0.2 A increases at the rate of \( 0.4 \text{ A s}^{-1} \). If the power flow in the coil is \( 0.6 \text{ J s}^{-1} \) the inductance of the coil is: