Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A) : Nitrogen has higher ionisation energy than oxygen Reason (R) : Nitrogen has half filled orbital.A Both (A) and (R) are correct and (R) is the correct explanation of (A). B Both (A) and (R) are correct but (R) is not the correct explanation of (A) C (A) is correct but (R) is not correct D (A) is not correct but (R) is correct
Question
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A) : Nitrogen has higher ionisation energy than oxygen Reason (R) : Nitrogen has half filled orbital.A Both (A) and (R) are correct and (R) is the correct explanation of (A). B Both (A) and (R) are correct but (R) is not the correct explanation of (A) C (A) is correct but (R) is not correct D (A) is not correct but (R) is correct
Solution
The correct answer is A. Both (A) and (R) are correct and (R) is the correct explanation of (A).
Here's why:
Assertion (A) : Nitrogen has higher ionisation energy than oxygen. This is correct. Ionisation energy is the energy required to remove an electron from an atom. Nitrogen has a higher ionisation energy than oxygen because its electrons are held more tightly.
Reason (R) : Nitrogen has half filled orbital. This is also correct. Nitrogen, with an atomic number of 7, has 5 electrons in its outer shell, making it half-filled. This configuration is particularly stable, which means it requires more energy to remove an electron, hence the higher ionisation energy.
Therefore, the reason (R) is indeed the correct explanation for the assertion (A).
Similar Questions
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) :Assertion (A) : NH3 gas is more easily liquefiable than CO2 gas.Reason (R) : NH3 gas has higher critical temperature than that of CO2 gas.Both (A) and (R) are true and (R) is the correct explanation of (A)Both (A) and (R) are true and (R) is not the correct explanation of (A)(A) is true but (R) is falseBoth (A) and (R) is false
The following questions consist of two statements- Assertion (A) and Reason (R).Answer these questions selecting the appropriate option given below: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.11. Assertion: The number of Electrons in the valence shell of helium atom is 2.Reason: The valency of helium is 2.12. Assertion: Protium and deuterium are isotopes.Reason: Isotopes have same mass numbers.13. Assertion: Atom is electrically neutral.Reason: A neutral particle, neutron is present in the nucleus of atom.14. Assertion: Cathode Rays get deflected towards the positive plate of electricfield.Reason: Cathode rays consist of negatively charged particles, known as electrons.15. Assertion: In Rutherford’s experiments, some of 𝛼-particles deflect by largeangles.Reason: 𝛼-particles are much heavier than the protons
Directions: In the following questions, a statement of assertion (A) is followed by astatement of reason (R). Mark the correct choice as:(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation ofassertion (A).(b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation ofassertion (A).(c) Assertion (A) is true but reason (R) is false.(d) Assertion (A) is false but reason (R) is true.4. Assertion : Cell wall is a non-living part of the cell.Reason : It offers protection, definite shape and support. ( )5. Assertion- A cell of meristem tissue is very active.Reason- Meristem tissue is dividing tissue. ( )6. Assertion: Legumes increases the soil fertility.Reason: Microbes in the root nodules of leguminous plants fix atmospheric nitrogen
Assertion (A): In case of burning, air and moisture are necessary.Reason(R): Oxygen is a supporter of combustion.(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
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).Assertion (A): Boiling is a bulk phenomenon.Reason (R): Boiling occurs only in closed vessel.In the light of the above statements, choose the most appropriate answer from the options given below :Both (A) and (R) are true and the (R) is the correct explanation of the (A)Both (A) and (R) are true and the (R) is not the correct explanation of the (A)(A) is true but (R) is falseBoth (A) and (R) are false
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.