assertion reason questions from structure of an atom
Answers
1) Assertion (A) : All isotopes of a given element show the same type of chemical
Assertion (A) : All isotopes of a given element show the same type of chemicalbehaviour.
Assertion (A) : All isotopes of a given element show the same type of chemicalbehaviour.Reason (R) : The chemical properties of an atom are controlled by the
Assertion (A) : All isotopes of a given element show the same type of chemicalbehaviour.Reason (R) : The chemical properties of an atom are controlled by thenumber of electrons in the atom.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) Both A and R are false.
Correct Answer: (i) Both A and R are true and R is the correct explanation of A.
2) Assertion (A) : Black body is an ideal body that emits and absorbs radiations
Assertion (A) : Black body is an ideal body that emits and absorbs radiationsof all frequencies.
Assertion (A) : Black body is an ideal body that emits and absorbs radiationsof all frequencies.Reason (R) : The frequency of radiation emitted by a body goes from a lower
Assertion (A) : Black body is an ideal body that emits and absorbs radiationsof all frequencies.Reason (R) : The frequency of radiation emitted by a body goes from a lowerfrequency to higher frequency with an increase in
Assertion (A) : Black body is an ideal body that emits and absorbs radiationsof all frequencies.Reason (R) : The frequency of radiation emitted by a body goes from a lowerfrequency to higher frequency with an increase intemperature.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the explanation of A.
(iii) A is true and R is false.
(iv) Both A and R are false
Correct Answer: (ii) Both A and R are true but R is not the explanation of A.
3.Assertion (A) : It is impossible to determine the exact position and exact
3.Assertion (A) : It is impossible to determine the exact position and exactmomentum of an electron simultaneously.
3.Assertion (A) : It is impossible to determine the exact position and exactmomentum of an electron simultaneously.Reason (R) : The path of an electron in an atom is clearly defined.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true and R is not the correct explanation of A.
(iii) A is true and R is false.
(iv) Both A and R are false.
Correct Answer: (iii) A is true and R is false.
Note : Options are always same in any Questions