The reaction which involves dichloro carbene as an electrophile is :

According to the electrochemical series, which of the following statements is incorrect?

Which among the following shows positive deviation from Raoult's law?

Which of the following statement is incorrect about aldol condensation?

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The speed at which a chemical reaction takes place is called the rate of reaction. The rate of reaction depends on various factors like concentration of the reactants, temperature, etc. The relation between the rate of reaction and the concentration of reacting species is represented by the equation r = k[A]^x[B]^y, where x and y are the order of the reaction with respect to the reactants A and B, respectively. The overall order of the reaction is x + y. The rate of reaction can also be increased by the use of a catalyst which provides an alternate pathway of lower activation energy. It increases the rate of forward and backward reaction to an equal extent. It does not alter the Gibbs energy of the reaction.
If the rate of reaction becomes twenty-seven times upon increasing the concentration of reactant by three times, the order of this reaction is

Which of the following statements is/are incorrect?

Answer the question on the basis of passage given below :
Living systems are made up of various complex bio-molecules like carbohydrates, proteins, nucleic acids, lipids etc. Proteins and carbohydrates are essential constituents of our food. Carbohydrates are primarily produced by plants and form a very large group of naturally occurring organic compounds. Some common examples are cane sugar, glucose, starch etc.
Insulin, generally given to diabetic patients is a :

Which of the following statements are correct for a transistor action ?
(A) The input resistance depends upon the current \( I_e \) in the transistor
(B) Collector currents is equal to the sum of base current and emitter current
(C) The emitter junction is forward biased
(D) The collector junction is reverse biased
(E) Both the emitter junction as well as the collector junction are forward biased
Choose the correct answer from the options given below :

When benzene diazonium chloride reacts with phenol, it results in the formation of an orange colored compound (X); and when benzene diazonium chloride reacts with aniline, it results in the formation of a yellow colored compound ( Y ).
What are \(X\) and \(Y\) ?

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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.
What is the purpose of using a gene promoter in recombinant DNA technology?

The number of one - one functions from \(A=\{1,2,3,4\}\) to itself is:

A radioactive nucleus of mass number A and atomic number Z, emits an alpha particle first and then a beta negative particle. The mass number and atomic number of the daughter nucleus will be

A is a \(2 \times 2\) non-singular matrix such that adj \(A=\left[\begin{array}{cc}\sin \theta-\cos \theta & -\sin \theta \sec \theta \\ 2 \cos ^2 \theta & \sin \theta-\cos \theta\end{array}\right]\) then \(|A|\) is: