Name the reagent used in Wurtz Reaction

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The crystal field theory (CFT) is an electrostatic model which considers the metal-ligand bond to be ionic arising purely from electrostatic interactions between the metal ion and the ligand. Ligands are treated as point charges in case of anions or dipoles in case of neutral molecules. The five d orbitals in an isolated gaseous metal atom/ion have same energy, i.e., they are degenerate. This degeneracy is maintained if a spherically symmetrical field of negative charges surrounds the metal atom/ion. However, when this negative field is due to ligands (either anions or the negative ends of dipolar molecules like NH3 and H2O) in a complex, it becomes asymmetrical and the degeneracy of the d orbitals is lifted. It results in splitting of the d orbitals. The pattern of splitting depends upon the nature of the crystal field.
If the fourth electron in d subshell enters one of the eg orbitals in octahedral complexes, it indicates that

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

Osmotic pressure measurements are less accurate and difficult to carry out. Therefore, this method is not useful for measuring molecular weights. But it is used to find out molecular weights of polymers eg. plastics, proteins and starch having many monomer units. Knowing the value of osmotic pressure of a given solution, molecular weight of the solute can be calculated using Van't Hoff equation.
Determine the Molarity of a solution containing 4g of NaOH in 1L solution

Match List-l with List-II

List-l (Order of reaction)	List-II (Expressions/Unit)
(A) Unit of zero order	(I) \(k t=[ R ]_0-[ R ]_t\)
(B) Unit of First order	(II) \(mol L ^{-1} s^{-1}\)
(C) Integrated Rate Law for zero order	(III) \(s^{-1}\)
(D) Integrated Rate Law for First order	(IV) \([ R ]=[ R ]_0 e^{-k t}\)

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In the presence of air, phenols are slowly oxidised to dark coloured mixture containing-

If \(75\)% of a first-order reaction gets completed in \(32\) minutes, the time taken for \(50\)% completion of this reaction is:

Match List I with List - II.

List - I	List - II
(A) Lepidopteran	(I) Beetles
(B) Coleopterans	(II) Meloidegyne incognitia
(C) Dipterans	(III) Tobacco budworm
(D) Nematode	(IV) Agrobacterium
	(V) Flies and mosquitoes

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Let A be a non-singular square matrix of order 3 and |adj A| = 5 then |A| is equal to

In the depression of freezing point experiment, it is found that :
(A) The vapour pressure of the solution is less than that of the pure solvent.
(B) The vapour pressure of solution is more than that of the pure solvent.
(C) Only the solute molecules solidify at the freezing point.
(D) Only the solvent molecules solidify at the freezing point.
Choose the correct answer from the options given below :

Pleiotropic genes are:

Darwin's finches of Galapagos Islands are the examples of:

Let \(\vec{a}=\hat{i}+2 \hat{j}+3 \hat{k}, \vec{b}=-\hat{i}+2 \hat{j}+\hat{k}, \vec{c}=3 \hat{i}+\hat{j}\) be three vectors. If \((\vec{a}+\lambda \vec{b})\) is perpendicular to \(\vec{c}\), then the value of \(\lambda\) is