(a) An organic compound X of molecular formula C2H4O2 gives brisk effervescence with sodium hydrogen carbonate. give the name and formula of X. (b) A mixture of ethyne (acetylene) and oxygen is burnt for welding. Can you tell why a mixture of ethyne and air is not used? (c) Name a chemical reaction which is characteristic of unsaturated hydrocarbons (like alkenes and alkynes).
(a) Write the equation for the preparation of carbon tetrachloride from methane. (b) Draw the structural formula of ethyne. (c) How is the structure of alkynes different from that of alkenes ?
(a) Give the name and structural formula of one member each of the following : (i) alkane (ii) alkene (iii) alkyne (iv) cycloalkane
(b) What are the common names of (i) Ethyne (ii) Ethene
(c) What is the chemical and structural formula of benzene?