The reaction in which an amide is treated with bromine in presence of ethanolic solution of sodium hydroxide is called

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In the formation of coordination complexes, if the inner \(d\) orbital \((n-1) d\) is used in hybridisation, the complex, is called an inner orbital or low spin or spin paired complex. And if it uses outer \(d\) orbital ( \(n d\) ) in hybridisation (like \(s p^3 d^2\) ), it is called outer orbital or high spin or spin free complex. The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the complex. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting. For coordination complexes, the magnetic moment is determined by the number of unpaired electrons and is calculated by using the 'spin-only' formula, \(\mu=\sqrt{n(n+2)}\) where \(n\) is the number of unpaired electrons and \(\mu\) is the magnetic moment in units of Bohr magneton (BM). The coordination compounds are of great importance. These compounds are widely present in the mineral, plant and animal worlds and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine.
Which of the following metals belongs to Wilkinson catalyst?

In alcohols, C-O-H bond angle is

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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

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Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered. The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
Which of the following statements are correct?
(A) Catalysts increase the rate of a chemical reaction.
(B) Catalysts can catalyze both spontaneous and non-spontaneous reactions.
(C) Higher the activation energy for a chemical reaction, lower is the rate of the reaction.
(D) Catalyst increases the potential energy barrier.
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The chemical reactions proceed at different rates which depend on various factors like concentration, temperature, etc. Rate law is an expression which relates the rate of reaction with concentration of various reacting species in the reaction. For a first order reaction, the concentration of the reactant after time \(t\) is related with its initial concentration by the relation, \(C=C_0 e^{-k t}\). The rate constants for different orders have different expressions. For a first order reaction, \(k=\frac{2.303}{t} \log \frac{a}{a-x}\), where \(a\) is the initial concentration and \(x\) is the extent of reaction.
A first order reaction is one-fifth completed in 40 minutes. Calculate the time required for its 100 % completion

When 1 mol of CrCl\(_3\) \(\cdot\) 6H\(_2\)\(O\) is treated with excess AgNO\(_3\), 3 mol of AgCl are obtained.
The conductivity of the solution will correspond to:

Two pipes A and B can fill a tank in 24 minutes and 32 minutes respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that the tank is full in 18 minutes?

Match List-I with List-II

List-I (Interspecific interaction)	List-II (Species A and B respectively)
(A) Commensalism	(I) - ; -
(B) Amensalism	(II) + ; -
(C) Competition	(III) + ; 0
(D) Predation	(IV) - ; 0

'+' = beneficial interaction; '-' = detrimental interaction; '0' = neutral interaction
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Recombinant DNA Technology Asexual reproduction preserves the genetic information, while sexual reproduction permits variation. Traditional hybridization procedures used in plants and animals breeding very often lead to inclusion and multiplication of undesirable genes along with the desired genes. The techniques of genetic engineering, which include creation of recombinant DNA, use of gene cloning and gene transfer, overcome this limitation and allow us to isolate and introduce only one or a set of desirable genes without introducing genes into the target organism.
Which one of the following techniques is used to amplify a specific DNA sequence?

Which of the following statements are correct ? (A) \(\sin ^{-1}(-x)=-\sin ^{-1} x, x \in[-1,1]\) (B) \(\tan ^{-1}(-x)=-\tan ^{-1} x,-1<x<1\) (C) \(\cos ^{-1}(-x)=\pi-\cos ^{-1} x,-1 \leq x \leq+1\) (D) \(\sec ^{-1}(-x)=\pi-\sec ^{-1} x,|x|>1\) (E) \(\cot ^{-1}(-x)=\pi-\cot ^{-1} x, x \in R\) Choose the correct answer from the options given below :

In a Mendelian dihybrid cross between a pea plant that has seeds with yellow color and round shape (RRYY) and another one that has seeds with green color and wrinkled shape (rryy), select the possible phenotypes obtained on self pollination after F\(_{1}\) generation.
(A) Round yellow
(B) Round green
(C) Wrinkled yellow
(D) Wrinkled brown
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In order to fabricate n-type semiconductor, the impurity elements used are