Reaction of \(C _6 H _5 CH _2 Br\) with aqueous sodium hydroxide follows preferably:

The statement "the limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte" corresponds to the law

In coordinate compound \([Cr(NH_3)_6][Co(CN)_6]\)
what type of isomerism arises?

The compound resistant to oxidation is

The desalination of sea water plant stops working due to which of the following reasons?

The examples of disaccharides are
(A) Sucrose
(B) Maltose
(C) Lactose
(D) Cellulose
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Read the passage carefully and answer
When a metal is placed in a solution of its ions, the metal can lose electron and can go in the solution as ion or the metal ion in the solution can take electron from the electrode and get deposited as metal. Thus, the electrode acquires either positive or negative charge with respect to the solution leading to the development of a potential difference between the metal electrode and the solution. This potential difference is called the electrode potential of the metal. The electrode potential of a metal is a measure of relative tendency to undergo oxidation (loss of electron) or reduction (gain of electron). When the concentration of the ions in the solution is unity, the electrode potential is called standard electrode potential. The magni of potential depends upon the nature of electrode, concentration of ions in solution and the temperature. In a galvanic cell, the electrode at which oxidation occurs is known as anodic half-cell and the electrode at which reduction occurs is known as cathodic half cell. The emf of the cell in terms of standard reduction potential is given by \(E_{\text {cell }}^{\circ}=E_{\text {cathode }}^{\circ}-E_{\text {anode. }}^{\circ}\).The standard free energy change of the redox reaction taking place in the cell is related to \(E_{\text {cell }}^{\circ}\) by \(\Delta G^{\circ}=-n F E^{\circ}\). A redox reaction would occur spontaneously if the free energy change is negative. The equilibrium constant of the reaction is related to the standard free energy change by \(\Delta G^{\circ}=-R T \ln K\).
The half call reaction is the one that

Match List I with List - II.

List - I	List - II
(A) Produces crystals of toxic insecticidal proteins	(I) Meloidegyne incognitia
(B) Nematode which infects the roots of tobacco plant	(II) Agrobacterium tumefaciens
(C) Vector used to transfer the nematode specific gene into the host plant was obtained from	(III) Bacillus thuringiensis
(D) Plasmids used to produce the insulin chains were obtained from	(IV) Propionibacterium sharmanii
	(V) Eshcherichia coli

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If \(X+Y=\left(\begin{array}{ll}7 & 0 \\ 2 & 5\end{array}\right)\) and \(X-Y=\left(\begin{array}{ll}3 & 0 \\ 0 & 3\end{array}\right)\), then \(X\) and \(Y\) are:

Which of the following statements regarding primary treatment of sewage water are correct:
A. It is a physical treatment
B. It is based on formation of flocs to trap the particulate matter from the sewage
C. It removes large and small particles through filtration and sedimentation.
D. It removes floating debris by filtration and grit by sedimentation

Methanogens do not produce:

Transition elements has great variety of oxidation states, Identify elements showing only three oxidation states
A. Ni
B. V
C. Co
D. Ti
E. Fe
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How much energy will be carried out by electromagnetic radiation of wavelength \( 3 \times 10^{-6} \text{ m} \)?