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Class 10 Science Medium Mcq English Medium

When an element 'X' reacts with water, it starts floating. Identify the element 'X' : Directions: For question number 24, two statements are given, one labelled as Assertion (A) and the other is labelled as Reason (R). Select the correct answer to this question from the codes (A), (B), (C) and (D) as given below : (A) Both, Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). correct explanation of the Assertion (A).

Question
When an element 'X' reacts with water, it starts floating. Identify the element 'X' : Directions: For question number 24, two statements are given, one labelled as Assertion (A) and the other is labelled as Reason (R). Select the correct answer to this question from the codes (A), (B), (C) and (D) as given below : (A) Both, Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). correct explanation of the Assertion (A).
Potassium
Sodium
Calcium (D) Iron
Both, Assertion (A) and Reason (R) are true, but Reason (R) is not the
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.
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