Match the metal/ion given in List-I with properties given in List-II

List-l (Metal)	List-II (Properties)
(A) \(Sc ^{3+}\)	(I) \(3 d^3\)
(B) \(Cr ^{3+}\)	(II) Colorless
(C) \(Cu ^{2+}\)	(III) \(3 d^8\)
(D) \(Ni ^{2+}\)	(IV) \(3 d^9\)

Choose the correct answer from the options given below :

The molar conductivity of KNO\(_3\), NaCl and KCl are 111, 128 and 152 S cm\(^2\) mol\(^-\)\(\mathrm{^1}\), respectively. The molar conductivity of NaNO\(_3\) will be:

Answer the question on basis of passage given below :
P block elements are placed in groups 13 to 18 of the periodic table. Their valence shell electronic configuration is \(ns^2 np^{1-6}\). Group 16 of the p block elements are known as the group of chalcogens having \(ns^2 np^4\) as their general electronic configuration. They exhibit number of oxidation states but the stability of \(- 2\) oxidation state decreases down the group. They are sometimes also known as group of chalcogens as the name is derived from the Greek word for brass and points to the association of sulphur and its congeners with copper. Their ionisation enthalpy decreases down the group. Oxygen shows anomalous behaviour due to its small size and high electronegativity.
Which one is the correct electronic configuration of sulphur?

Answer the question on basis of passage given below :
Chloroform is a very useful solvent for oils, fats and waxes and many organic compounds. It can also be used for preserving biological specimens. Chloroform was used as a general anaesthetic in surgery for a long time but because of its toxic nature, it is no longer used these days.
Suggest a substitute for chloroform as a general anaesthetic :

The correct SI unit of molar conductivity is:

A divalent ion of 'V' (Atomic no. - 23) in aqueous solution is :

The presence or absence of hydroxyl group on which carbon is ribose sugar differentiate RNA and DNA?

The general solution of the differential equation \(\left(1+x^2\right) d y-x d x=0\) is :

A graph is plotted between \(\text{ln}\ k\) and \(\frac{1}{T}\). What is the value of slope?

Arrange the following evolutionary human species in order of their appearance on earth from the current to the oldest one.
(A) Homo erectus
(B) Neanderthal man
(C) Dryopethicus
(D) Homo sapiens
Choose the correct answer from the options given below:

Let \(A=\left[\begin{array}{cc}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta\end{array}\right]\) and \(I=\left[\begin{array}{ll}1 & 0 \\ 0 & 1\end{array}\right]\). If \(A^T+A=I\), then:

For an ammeter, voltmeter and galvanometer having resistances \( R_A, R_V \) and \( R_G \) respectively, the correct relation among these resistances:

HIV attacks which one of the following cells?