chaudhurysr wrote:
However between b) and c) I am not sure! Chemicals are non-countable, so in theory much must be used instead of many. So c) seems to be more appropriate than b). But the book says b) is correct. I am confused!!
Uncountable nouns can be used in the plural as well, depending on the meaning or context of the word. Take a look at these sentences:
1. Would you like some coffee? |uncountable, because it's referring to the drink in general
2. He ordered a coffee. |countable, because it's referring
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