b)Which one of the following structural features is NOT based on hydrogen bonds? Circle all that apply. 3 pts i) complementary base pairing in DNA 1) protein primary structure i)protein secondary structure iv)complementary base pairing in RNA c)your friend tried to remove some writing on a plastic box. He used a napkin dampened with water, which did not work. Then as you advised, he used ethanol (instead of water) and successfully removed the writing. Circle why ethanol was better than water in this case3 pts [formula of ethanol: CH3-CH2-OH] i)Ethanol has a greater surface tension, so it extracts the ink molecules better from the plastic i Ethanol can form hydrogen bonds with the ink molecules iii One end of ethanol is non polar this makes ethanol a better solvent for the ink molech iv)Ethanol is more hydrophilic, so it washes off the writing more efficientlyName________________________________ b) Which one of the following structural features is NOT based on hydrogen bonds? Circle all that apply. 3 pts i) complementary base pairing in DNA ii) protein primary structure iii) protein secondary structure iv) complementary base pairing in RNA c) Your friend tried to remove some writing on a plastic box. He used a napkin dampened with water, which did not work. Then as you advised, he used ethanol (instead of water), and successfully removed the writing. Circle why ethanol was better than water in this case. 3 pts [formula of ethanol: CH3-CH2-OH] i) Ethanol has a greater surface tension, so it extracts the ink molecules better from the plastic. ii) Ethanol can form hydrogen bonds with the ink molecules. iii) One end of ethanol is non-polar. This makes ethanol a better solvent for the ink molecules. iv) Ethanol is more hydrophilic, so it washes off the writing more efficiently. 3