1.)How will u test for an Alcohol.????2.) A mixture of ethyene and oxygen is burnt for welding. Can u tell why a mix. of ethyne and air is not used.????3.) Which element has a total of two shells,with three electrons in its second shell as in its first shell.????

1.)How will u test for an Alcohol.????2.) A mixture of ethyene and oxy

1.	1.)How will u test for an Alcohol.????2.) A mixture of ethyene and oxygen is burnt for welding. Can u tell why a mix. of ethyne and air is not used.????3.) Which element has a total of two shells,with three electrons in its second shell as in its first shell.????
Answer» 1. R-OH+Na---------> R-O-Na + H₂ Alcohol reacts with sodium metal to give Hydrogen gas.The effervescence of H₂ serevs as a TEST for alcohols. 2.Weilding requires a very high temperature And oxygen helps in attaining that high temp., so ethyene and oxygen is burnt for attaining a very high temperature. A mixture of air and ethyene is not TAKEN as air has very LIMITED(21%) oxygen 3.boron (1s² 2s² 2p¹)