Nature of Matter Elements Compounds and Mixtures Class 8 Assertion and Reason Questions

Nature of Matter Elements Compounds and Mixtures Class 8 Assertion and Reason Questions

Nature of Matter Elements Compounds and Mixtures Class 8 Assertion and Reason Questions

Following questions are of Assertion (A), Reason (R) type questions. Choose the correct answer from the following options:

(a) Both A and R are true, and R is the correct explanation of A.

(b) Both A and R are true, but R is not the correct explanation of A.

(c) A is true, but R is false.

(d) A is false, but R is true.

1. (A): All elements are made up of atoms.

(R): Atoms are the smallest units of matter that retain the properties of an element.

Answer:

(a) Both A and R are true, and R is the correct explanation of A.

2. (A): Air is a homogeneous mixture.

(R): A homogeneous mixture has a uniform composition throughout.

Answer:

(a) Both A and R are true, and R is the correct explanation of A.

3. (A): All compounds have fixed compositions.

(R): The properties of compounds are the same as those of the elements that form them.

Answer:

(c) A is true, but R is false.