choose only one question and answer it please ( inorganic chem ) 1. One often he
ID: 712464 • Letter: C
Question
choose only one question and answer it please ( inorganic chem )
1. One often hears (even in CHEM 404a) that elements in a group exhibit similar properties. However, small differences between elements can be crucial (which you have also heard in lecture). One example with respect to reactivity is that Si - H systems react with sources of protons to produce H2 while hydrocarbons do not. Given the very high interest is using H2 as a fuel, this difference can be key when thinking about potential H2 producing materials. Provide an explanation for this difference in reactivity 2. Despite some fundamental assumptions that are not verified by experiment, VSEPR theory can be used quite successfully to predict molecular shape. First, suggest how conversion of NO2, which is a major component of air pollution, to either the respective cation (NO2+) or anion (NO2) will impact molecular shape. Second, think about one molecular property that would be impacted by such redox chemistry 3. Should CH20 (formaldehyde) or CCl20 (phosgene) have a smaller CX2 bond?Explanation / Answer
3. Phosgene should have smaller CX2 bond length.
Because in phosgene x is chlorine and in formaldehyde x is hydrogen. Chlorine has lone pair of electron which can form conjugation with pie bond. This shortens the c-cl bond length by providing partial double bond character. No such is observed with c-H bond.
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