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Alcohols and phenols are obtained when a hydrogen atom in aliphatic and aromatic hydrocarbons respectively, is replaced by \(OH\) group. These compounds find wide applications in industry as well as in our daily life. You may notice that ordinary spirit is used for polishing wooden furniture which is chiefly a compound containing hydroxyl group. An alcohol contains one or more hydroxyl \((OH)\) group(s) directly attached to carbon atom(s), of an aliphatic system \((CH_3OH)\) while a phenol contains \(OH\) group(s) directly attached to carbon atom(s) of an aromatic system \((C_6H_5OH)\). Alcohols are prepared by the hydration of alkenes, fermentation of glucose, and reduction of carbonyl compounds. Alcohols produce alkenes upon dehydration whereas alkenes on acid catalyzed hydration convert into alcohols.
Which of the following compounds lacks phenolic group?

The correct sequence of conductivity of the following materials at 300 K in the increasing order is
(A) Copper
(B) Graphite
(C) Germanium
(D) Silicon
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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 complex has the highest magnetic moment?

Match List - I with List - II.

List - I (Ore)	List - II (Metal)
(A) Calamine	(1) Copper
(B) Malachite	(II) Aluminium
(C) Siderite	(III) Zinc
(D) Cryolite	(IV) Iron

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The dehydration of alcohol follows the order :

Chloroform is largely used for

The IUPAC name of the coordination compound \(\left[ CoCl _2( en )_2\right]^{+}\)is :

The de-Broglie wavelength associated with an electron accelerated through a potential difference V is \( \lambda \). The new de Broglie wavelength of electron when potential difference is increased to 9V will be:

The formation of rainbow is an example of

Match List I with List II

LIST I	LIST II
A. Salmonella typhi	I. Common Cold
B. Rhino virus	II. Typhoid
C. Streptococcus pneumoniae	III. Malaria
D. Plasmodium vivax	IV. Pneumonia

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DNA Fingerprinting
Polymorphism in DNA sequence is the basis of genetic mapping of the human genome as well as of DNA fingerprinting. DNA fingerprinting involves identification of differences in some specific regions in the DNA sequence called repetitive DNA. It works on the principle of polymorphisms in DNA sequences. The repetitive DNA are separated from bulk genomic DNA. The bulk DNA forms a major peak and the other small peaks are referred to as satellite DNA. These repetitive/satellite DNA sequences show a high degree of polymorphisms and form the basis of DNA fingerprinting.
One of the most frequently used techniques in DNA fingerprinting is

If \(A\) and \(B\) are any two events such that \(P(B)=P(A\) and \(B)\), then which of the following is correct:

If A is a square matrix and I is the identity matrix of same order such that \(A^2=I\), then \((A-I)^3+(A+I)^3-3 A\) is equal to: