Ethane with the molecular formula c2h6 has

Ethane with molecular formula C 2 ​ H 6 ​ has seven covalent bonds. 6 bonds between C − H and one is between C − C. The six hydrogen atoms will each share their 1 electron with carbon to form six carbon-hydrogen covalent bonds. The two carbon atoms will each share their 1 electron to form one carbon-carbon covalent bond. (a) Write the dehydration reaction of ethanol and write the name of dehydrating agent. (b) Choose correct series for the following. Compund Series (i) Ethane (a) unsaturated hydrocarbon (ii) Benzene (b) long chained saturated hydrocarbon (iii) Hexane (c) hydrocarbon having odd atom (iv) Methyl alcohol (d) saturated hydrocarbon

Hint: Alkanes are the saturated hydrocarbon which is also known as paraffin. A covalent bond is a bond in which the sharing of a pair of electrons takes place between two atoms. An atom having more electronegativity can attract the pair of electrons more easily. Complete answer: Alkanes form an only single bond between different atoms. So, to calculate the number of covalent bonds we have to draw the structure of ethane: As we can see that one covalent bond is present between two carbon atoms and six covalent bonds are present between hydrogen and carbon atoms which are highlighted with the orange colour. So, option B. is the correct answer. Additional Information Ethane is an organic compound which is used for the synthesis of ethylene. - It is an odourless and colourless compound with a common name of dimethyl. - Ethane is also soluble in water and can be used to make ethanol. - The hybridisation of the ethane molecule will be \[\text\] with a geometry of trigonal planar. - Here, in this molecule, the carbon and hydrogen have less electronegativity difference whereas the carbon-carbon bond has no electronegativity difference, so the electrons remain at the centre of the bond. Note: Carbons cannot gain as well as a loss any electron so to fulfil their octet they can only share a pair of electrons to become stable. The compound which consists of covalent bonds usually has a low melting point.

Remember that mono, di, tri, and tetra refers to number of substitutions off an original alkene with 4 Hydrogens. Therefore, with 2 H-atoms attached, you know that there had to have been 2 substitutions, therefore it is di. In the 2nd molecule there is only room for 1 H-atom, therefore you can assume that since there is only 1, there must have been 3 substitutions, and therefore it is tri. the hydrogens do have free rotation, but It might not mean what you think it does. Each hydrogen is connected by a sigma bond, and only a sigma bond. they can rotate about the axis of this bond, but nothing more. The C=C does NOT have free rotation, so the molecule is locked into its planar geometry. the Hydrogen molecules are free to spin, but they can not move their position around the molecule. When you have, for example, a methyl group joined on to a double bond, then the electrons in one of sigma bonds joining the C to a H in the methyl group can partially overlap with the electrons in the pi-bond of the double bond. (Bear in mind that the carbons in the methyl group are SP3 hybridised.) This is delocalisation and it happens because these bonds can be in the same plane and therefore line up. This allows the electrons in the pi bond to "spread out" a bit, rather than being confined to pi bond, and this has the effect of stabilising the molecule. The more alkyl groups that are attached to the double bond, the more delocalisation that can occur across the molecule, and the more stable ...