Yes, you can do this. Wrap the AdSense ads in a <div> tag, then apply a class to that div, e.g., <div class="showNoShow">ADSENSE GOES HERE</div>. In Other > Global Scripts > HEAD section, add the following CSS class:
Code:
<style type="text/css">
.showNoShow {display: block;}
</style>
Then for the pages where you don't want the ads to show, got to Page Settings > Advanced Settings for each of those pages and add the following code to Scripts > HEAD section:
Code:
<style type="text/css">
.showNoShow {display: none;}
</style>
Also, make sure to check the box "Include global script," in case you add other CSS in Global Scripts that should be available to those pages.