Match List-I with List-II

List-I	List-II
(A) 1T	(I) V s
(B) 1H	(II) \( 1m^2 A \)
(C) \( JT^{-1} \)	(III) \( \frac{Wb}{m^2} \)
(D) 1Wb	(IV) Wb/A

Choose the correct answer from the options given below :

A spherical metallic conductor of radius \(6 . 0 ~ c m\) is held in air. The maximum charge it can hold if
dielectric strength of air is \(20 kV / cm\) will be :
\(\left(\text { Take } \frac{1}{4 \pi \epsilon_0}=9 \times 10^9 N m^2 C^{-2}\right)\)

An object is placed at 5 cm in front of a concave mirror with a radius of curvature of 20 cm. The distance of the image from mirror and its nature are

Which of the following element has highest binding energy per nucleon ?

Two coherent light sources have intensities in the ratio 25: 16. The ratio of the intensities of maxima to minima, in the interference pattern due to them would be

The momentum of a photon associated with a radiation of frequency \(2 \times 10^{13} Hg\) is (Given: \(h=6.6 \times 10^{-34} J\) s and \(c=3 \times 10^8 m / s\) )

A parallel plate capacitor with plates of area A, held a distance d apart, has a capacitance C. A thin silver foil of negligible thickness and the same area is inserted at mid-point between the plates. The capacitance becomes

The limiting molar conductivities for \(NaCl\), \(HCl\) and \(CH_3COONa\) are \(126.4\), \(425.9\) and \(91.0\ S\ cm^2\ mol^{-1}\), respectively. Calculate the limiting molar conductivity for acetic acid.

The number of moles of potassium dichromate needed to oxidize 3 moles of ferrous ions in acidic medium will be ___________

The feasible region represented by the constraints \(x+2 y \geq 100,2 x-y \leq 0.2 x+y \leq 200, x \geq 0, y \geq 0\) of an LPP is

The rate of a first order reaction at a constant temperature

Read the Passage carefully and answer the questions
When a ligand is bound to a metal ion through a single donor atom, it is said to be a unidentate ligand but when it bind through two donor atoms, then it is said to be didentate ligand and when several donor atoms are present in a single ligand, it is said to be a polydentate ligand. When a di- or polydentate ligand uses its two or more donor atoms simultaneously to bind a single metal ion, it is said to be a chelate ligand. The number of such ligating groups is called the denticity of the ligand. ligand which has two different donor atoms and either of the two ligetes in the complex is called ambidentate ligands. The number of ligand donor atoms to which the metal is directly bonded, is called coordination number of the metal ion in the complex. Complexes in which a metal is bound to only one kind of donor groups are known as homoleptic and in which a metal is bound to more than one kind of donor groups are known as heteroleptic complexes.
To make an octahesral complex of \(Mg ^{2+}\) ion, how many molecules of \(EDTA\) are used?

Answer the question on basis of passage given below :
Molecular nitrogen is very little reactive chemically. During lightning discharge, atmospheric nitrogen and oxygen combines to form nitric oxide which also combines with oxygen to form nitrogen dioxide. Both NO and \(NO _2\) constitute smog which is very poisonous. It can cause burning sensation in the eyes and adversely affect respiratory system.
Molecular nitrogen is very little reactive since it has -