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Biology question- water

Hi, please could i have help on this question? I dont understand what statement 1 is incorrect? Doesn’t water act as a transport medium for dissolved substances because of its hydrogen bonds?
Here is the question: https://app.gemoo.com/share/image-annotation/604896876830494720?codeId=DWaRqqapVmedm&origin=imageurlgenerator

Thanks!
Original post by anonymous294
Hi, please could i have help on this question? I dont understand what statement 1 is incorrect? Doesn’t water act as a transport medium for dissolved substances because of its hydrogen bonds?
Here is the question: https://app.gemoo.com/share/image-annotation/604896876830494720?codeId=DWaRqqapVmedm&origin=imageurlgenerator

Thanks!

Because the question is asking specifically about the hydrogen bonds between water molecules and not other substances. Statements 2 and 3 talks about this: H2 bonds between molecules cause high latent heat of vaporization as well as provide a stable environment for aquatic species (strong H2 bonds = need a lot of energy to break = stable). For statement 1, dissolving is made possible due to the bond formed between the substance and a water molecule. The dissolving of materials = not caused by the bond between water molecules. I see that you have asked a lot of CIE paper 1 questions. Key is to pay attention to what the question is saying and underline any significant words. I got a perfect score for my paper 1 and during my exam, reread my paper 1 exam at least 20 times after completing it and changed my answers again and again.
Reply 2
Original post by Tulipbloom
Because the question is asking specifically about the hydrogen bonds between water molecules and not other substances. Statements 2 and 3 talks about this: H2 bonds between molecules cause high latent heat of vaporization as well as provide a stable environment for aquatic species (strong H2 bonds = need a lot of energy to break = stable). For statement 1, dissolving is made possible due to the bond formed between the substance and a water molecule. The dissolving of materials = not caused by the bond between water molecules. I see that you have asked a lot of CIE paper 1 questions. Key is to pay attention to what the question is saying and underline any significant words. I got a perfect score for my paper 1 and during my exam, reread my paper 1 exam at least 20 times after completing it and changed my answers again and again.

I see, i missed out the between water molecules part ☹️ Thank you for your tip!
Reply 3
Original post by anonymous294
Hi, please could i have help on this question? I dont understand what statement 1 is incorrect? Doesn’t water act as a transport medium for dissolved substances because of its hydrogen bonds?
Here is the question: https://app.gemoo.com/share/image-annotation/604896876830494720?codeId=DWaRqqapVmedm&origin=imageurlgenerator

Thanks!

i think so

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