Question

In the following questions a statement of assertion followed by a statement of reason is given.

Choose the correct answer out of the following choices.

(a) Assertion and reason both are correct and reason is correct explanation of assertion.

(b) Assertion and reason both are wrong statements

(c) Assertion is correct statement but reason is wrong statement.

(d) Assertion is wrong statement but reason is correct statement.

(e) Both assertion and reason are correct statements but reason is not correct explanation of Assertion.

(i) Assertion : Significant figures for 0.200 is 3 whereas for 200 it is 1. Reason : Zero at the end or right of a number are significant provided they are not On the right side of the decimal point

(ii) Assertion : Graphite is an element. Reason : Element is the pure form of a substance containing same kind of atoms.

(iii) Assertion : Hydrogen has one electron in its orbit but it produces several spectral lines Reason : There are many excited energy levels available.




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Answer 1

Explanation:

(I) (a) Assertion and reason both are correct and reason is correct explanation of assertion.

Because 0.200 after decimal zero is also included in significant figures and in the cause of 200 is not included.

(ii) (c) Assertion is correct statement but reason is wrong statement.

(iii) (a) Assertion and reason both are correct and reason is correct explanation of assertion.