Match List-I with List-II

List-I (Parameter of Magnetic Dipole)	List-II (Formula)
(A) Magnetic moment	(I) \( \mu_0 2m / (4\pi x^3) \)
(B) Magnetic field on the equatorial line	(II) \( m \times B \)
(C) Magnetic field on axial line	(III) \( IA \)
(D) External torque in magnetic field	(IV) [Missing/Constant]

Choose the correct answer from the options given below:

The ratio of maximum frequency and minimum frequency of light emitted in Balmer series of hydrogen spectrum is

The refractive index of an equilateral prism is \( \sqrt{3} \). The angle of incidence for which angle of deviation is minimum is :

When a steady current flows in a metalic conductor of non-uniform cross section. Which of these quantities is constant along the conductor?
A. Current
B. Electric field
C. Drift speed
D. Current density
E. Potential gradient
Choose the correct answer from the options given below:

Two coherent light beams of intensities I and 4 I are superimposed. The maximum and minimum possible intensities in the resulting pattern are :

In a step-down transformer, 22 kV is converted into 220 V. The number of turns in the primary coil is 60000. The number of turns in the secondary coil will be

A short solenoid of radius a and \( n_{1} \) number of turns per unit length and length L is kept coaxially inside a very long solenoid of radius b and \( n_{2} \) number of turns per unit length. What is the mutual inductance of the system.

The system of equations \(x+y-z=1,3 x+y-2 z=3, x-y+\lambda z=1\) has infinite number of solutions if \(\lambda\) is equal to

Grignard reagent should be prepared under anhydrous condition because

Ribonuclease make cuts in

The device that regulates change in intensity of illumination into change in electric current is :

Read the passage carefully and answer the Questions
Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms.
They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the C-OH bond and the O_H bond along with the reactions involving the complete -COOH group.
Arrange the following in the increasing order of their pK_a values:
(A) CF₃-COOH
(B) O₂N-CH₂-COOH
(C) NC-CH₂-COOH
(D) H-COOH
Choose the correct answer from the options given below :

Complete the reaction:
\(\text{NH}_2\text{CONH}_2 + \text{H}_2\text{O} \rightarrow \text{ ?}\)