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Answer: water, followed by hydrogen fluroide, ammonia and lowest is methane.

Explanation: First it helps to write the molecular formulae of these molecules and know their shape:

As group 2 in the periodic table comprises of metals, the reactivity of group 2 elements towards chlorine increases when working our way down the group 2 metals. This is compared to non-metals when the...

A C to C double bond has a high electron density. As the bromine gets close to the C=C bond the high electron density repels the electrons in the H-Br bond further towards the H making the H slightly n...

This molecule is v-shaped. There are three areas of electron density surrounding the central sulfur atom, these three areas of electron density repel as far apart as possible, explained by the VSEPR th...

Proton or ¹H NMR can look complicated but with practice; there are techniques that can make the peak assignment a little easier.1. Make sure you count the proton environments correctly, if the ...