I. C. H.

With the formula C < sub > n </ sub > H < sub > 2n + 2 </ sub >, Alkanes belong to a homologous series of organic compounds in which the members differ by a constant relative molecular mass of 14.

An important class of alcohols are the simple acyclic alcohols, the general formula for which is C < sub > n </ sub > H < sub > 2n + 1 </ sub > OH.

Of those, ethanol ( C < sub > 2 </ sub > H < sub > 5 </ sub > OH ) is the type of alcohol found in alcoholic beverages, and in common speech the word alcohol refers specifically to ethanol.

Benzene, C < sub > 6 </ sub > H < sub > 6 </ sub >, is the simplest aromatic hydrocarbon and was recognized as the first aromatic hydrocarbon, with the nature of its bonding first being recognized by Friedrich August Kekulé von Stradonitz in the 19th century.

This is seen in, for example, phenol ( C < sub > 6 </ sub > H < sub > 5 </ sub >- OH ), which is acidic at the hydroxyl ( OH ), since a charge on this oxygen ( alkoxide-O < sup >–</ sup >) is partially delocalized into the benzene ring.

Terpenoids, produced by conifers and angiosperms, consist of ring structures formed of isoprene ( C < sub > 5 </ sub > H < sub > 8 </ sub >) units.

Several of Alexander's works were published in the Aldine edition of Aristotle, Venice, 1495 – 1498 ; his De Fato and De Anima were printed along with the works of Themistius at Venice ( 1534 ); the former work, which has been translated into Latin by Grotius and also by Schulthess, was edited by J. C. Orelli, Zürich, 1824 ; and his commentaries on the Metaphysica by H. Bonitz, Berlin, 1847.

* Pepto-Bismol – C < sub > 7 </ sub > H < sub > 5 </ sub > BiO < sub > 4 </ sub >

The simplest acyclic alkenes, with only one double bond and no other functional groups, form an homologous series of hydrocarbons with the general formula C < sub > n </ sub > H < sub > 2n </ sub >.

The simplest alkene is ethylene ( C < sub > 2 </ sub > H < sub > 4 </ sub >), which has the International Union of Pure and Applied Chemistry ( IUPAC ) name ethene.

: H < sub > 2 </ sub > C = C = CH < sub > 2 </ sub > CH < sub > 3 </ sub > C ≡ CH

Alkynes are hydrocarbons that have a triple bond between two carbon atoms, with the formula C < sub > n </ sub > H < sub > 2n-2 </ sub >.

Alkynes are traditionally known as acetylenes, although the name acetylene also refers specifically to C < sub > 2 </ sub > H < sub > 2 </ sub >, known formally as ethyne using IUPAC nomenclature.

In acetylene, the H – C ≡ C bond angles are 180 °.

: HC ≡ CC < sub > 6 </ sub > H < sub > 12 </ sub > C ≡ CH + 2H < sub > 2 </ sub > O → CH < sub > 3 </ sub > COC < sub > 6 </ sub > H < sub > 12 </ sub > COCH < sub > 3 </ sub >

T. H. C.

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* Sarkar, J. N. ( 1992 ) Chapter I: The Sources in The Comprehensive History of Assam, ( ed H K Barpujari ) Publication Board, Assam.

Sarkar, Jadunath ( 1962 ), A Short History of Aurangzib, 1618-1707, Calcutta: M. C. Sarkar and Sons,.

* Sarkar, S., 2004, « Genes encode information for phenotypic traits », in Hitchcock, C.

According to the renowned historian D. C. Sarkar, the Chandrapura Matha was the greatest centre of Hindu-learning in the entire Eastern India of the early period.

Noted Historian Dr. D. C. Sarkar during his visit, found some more evidences on the basis of which, he also confirmed that this place was very important " Krimila " Subject during Pal administration.

* Bagchi, A. K., 1976, ` Deindustrialisation in Gangetic Bihar, 1809-1901 ' in Essays in Honour of Prof. S. C. Sarkar, New Delhi.

Notable ones among them include C. R. Rao, S. R. S. Varadhan, R. C. Bose, D. Basu, K. R. Parthasarathy, Jayanta Kumar Ghosh, B. L. S. Prakasa Rao, G. Jogesh Babu, T. Parthasarathy, Thriyambakam Krishnan, G. N. Kallianpur, Rajeeva Karandikar, Ravindra Khattree, Palash Sarkar, J. S. Rao, Kesar Singh, Ranajit Chakraborty, Partha Pratim Majumder, Probal Chaudhuri, Arup Bose, Sundaram Thangavelu, Subhashis Ghosal, Nilanjan Chatterjee, Sudipto Banerjee, Sourav Chatterjee, Jean Drèze, Subramanian Swamy and Sucharit Sarkar.

* Tanvi ( 1930 ), M. C. Sarkar & Sons

The singers were K C Dey, Parul Ghosh and Suprabha Sarkar.