Match the type of ligands given in List-I with appropriate examples given in List-II

List-I (Ligands)	List-II (Examples)
(A). Ambidentate	(I). thiocyanato
(B). Unidentate	(II). water
(C). Didentate	(III). oxalate
(D). Polydentate	(IV). ethylenediaminetetraacetate

Choose the correct answer from the options given below:

The reaction which involves dichloro carbene as an electrophile is :

Which of the following statements is(are) correct for amino acids?
(A) Amino acids behave like salts
(B) In aqueous solution they form zwitter ion.
(C) Most naturally occurring amino acids exist in D configuration
(D) Tyrosine is a non-essential amino acid
Choose the correct answer from the options given below:

Which one of the following ions is paramagnetic in nature?

Read the passage carefully and answer the questions
Nearly all the transition elements display typical metallic properties such as high tensile strength, ductility, malleability, high thermal and electrical conductivity and metallic lustre. The transition metals (with the exception of Zn, Cd and Hg) are very hard and have low volatility. Their melting and boiling points are high. They have high enthalpies of atomization. lons of the same charge in a given series show progressive decrease in radius with increasing atomic number. However, the variation within a series is quite small. The filling of 4f before 5d orbital results in a regular decrease in atomic radii called Lanthanoid contraction which essentially compensates for the expected increase in atomic size with increasing atomic number The net result of the lanthanoid contraction is that the second and the third d series exhibit similar radii (e.g., Zr 160 pm, Hf 159 pm) and have very similar physical and chemical properties. There is an increase in ionisation enthalpy along each series of the transition elements from left to right. The first ionisation enthalpy, in general, increases, but the magnitude of the increase in the second and third ionisation enthalpies for the successive elements, is much higher along a series. One of the notable features of a transition elements is the great variety of oxidation states these may show in their compounds.
In the first transition series of elements (Sc to Zn), which element show least enthalpy of atomization?

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.
Identify the epsom salt out of the following salts :

Identify " \(Y\) " in the following reaction:
\(R - Mg - X + CO _2 \xrightarrow{\text { Dry ether }} X \xrightarrow{ H _3 O ^{+}} Y\)

Heavy water and __________ is one of the substance used as moderator in reactors.

The correct relation for determining the molar mass of solute (\(\text{M}_2\))
using osmotic pressure measurement, is

Consider the following L.P.P minimize \(z=x-7 y+190\) subject to \(x+y \leq 8, x+y \geq 4, x \leq 5, y \leq 5\) and \(x, y \geq 0\). Then which of the following is/are true?
(A) It's feasible region is unbounded
(B) It's feasible region is bounded
(C) It's feasible region has 5 corner polnts
(D) It's feasible region has 6 corner polnts
Choose the correct answer from the options given below :

Observe the table and answer the given question :

How many amino acids have only two codons coding for them each ?

If \( n_i \) is the concentration of intrinsic charge carriers in a pure semiconductor and \( n_e \) and \( n_h \) be the concentrations of electrons and holes, respectively after the semiconductor is doped, then at thermal equilibrium.

Time reversal test is satisfied by: