Question

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Answer 1

Answer:

answer is (d) option i.e. all of these

Explanation:

this is because in this first option it is given that all the constituent particle of pure substances are the same in their chemical nature which we all know that is it is true and in the (b) option it is given that a pure substance consists of single type of material as we have read in earlier classes that a pure substance is that which consist only one kind of particles that is only one type of particles is are there in a pure substance now the third option and the last one is most of the matter around us exist as mixture of two or more components we can see around us that all these substances which we found exist in compound element that is they are mixture of two or more substances they are not pure at all.

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Answer 2

Answer:

Yup d is right one

explanation :

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