Plane explosion problem
In early days, hydrogen was used as a fuel in planes (nowadays helium is used ). The planes used to explode very often because hydrogen is a flammable gas. That's why planes were shifted to helium gas for fuel which is inert. But if you are stuck in a situation, where you don't have helium or any other inert gas to be used as a fuel. Only hydrogen is available. Now you have to construct a plane by keeping in mind the resources available and minimize the probability of plane explosion. You are given four options to choose elements to make a plane fuel except noble gases. From which block you want to take elements (I mean favour more) to make a plane? (of-course not hydrogen)
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1 solution
We donot want hydrogen to oxidise much. Ofcourse with it efficiency will reduce and we have to put in more hydrogen but overall we will able to handle the rapid oxidation of hydrogen. So we definitely want to reduce it . Hydrogen will reduce only in presence of a metal . I prefer making a plane made of pure metal (s-block) . bcoz in NaH , Oxidation state of hydrogen is -1 hence reduced .