Physics-
General
Easy
Question
Assertion :Ground state configuration of Cr is 3d5, 4s1.
Reason : A set of half filled orbitals containing one electron each with their spin parallel provides extra stability to the system.
- If both assertion and reason are true and the reason is the correct explanation of the assertion.
- If both assertion and reason are true but reason is not the correct explanation of the assertion.
- If assertion is true but reason is false.
- If the assertion and reason both are false.
The correct answer is: If both assertion and reason are true and the reason is the correct explanation of the assertion.
Both assertion and reason are true and reason is the correct explanation of assertion.
I.E. of N is more than that of 
as well as 
Related Questions to study
Physics-
Assertion :More is the electron affinity greater is the reducing character.
Reason : Reducing character depends on number of electrons gained.
Assertion :More is the electron affinity greater is the reducing character.
Reason : Reducing character depends on number of electrons gained.
Physics-General
Physics-
Assertion :Ionization potential across the period is Na < Al < Mg < Si.
Reason : Ionization potential decreases with decrease in atomic size.
Assertion :Ionization potential across the period is Na < Al < Mg < Si.
Reason : Ionization potential decreases with decrease in atomic size.
Physics-General
Physics-
Assertion :Shielding effect increases as we go down the group.
Reason : More is the number of electrons in the penultimate shell, more is shielding.
Assertion :Shielding effect increases as we go down the group.
Reason : More is the number of electrons in the penultimate shell, more is shielding.
Physics-General
Physics-
Assertion :Ionization enthalpy is always negative.
Reason : Energy is always released when electrons are removed.
Assertion :Ionization enthalpy is always negative.
Reason : Energy is always released when electrons are removed.
Physics-General
Physics-
Assertion :Chemistry of Actinoids is more complicated than Lanthanoids.
Reason : Actinoid elements are radioactive.
Assertion :Chemistry of Actinoids is more complicated than Lanthanoids.
Reason : Actinoid elements are radioactive.
Physics-General
Physics-
Assertion :Atomic number of the element ununbium is 112.
Reason : Name for digits 1 and 2 is un-and bi-respectively in latin words.
Assertion :Atomic number of the element ununbium is 112.
Reason : Name for digits 1 and 2 is un-and bi-respectively in latin words.
Physics-General
Chemistry-
Assertion :The first ionisation energy of Be is greater than boron [AIIMS 2002]
Reason : 2p orbitals have lower energy than 2s orbitals.
Assertion :The first ionisation energy of Be is greater than boron [AIIMS 2002]
Reason : 2p orbitals have lower energy than 2s orbitals.
Chemistry-General
Chemistry-
Assertion :Noble gases have maximum electron affinity.
Reason : High electron affinity shows that the electron is loosely bonded to the atom.
Assertion :Noble gases have maximum electron affinity.
Reason : High electron affinity shows that the electron is loosely bonded to the atom.
Chemistry-General
Chemistry-
Assertion : F atom has a less negative electron affinity than 
atom
Reason : Additional electrons are repelled more effectively by 3p electrons in atom than by 2p electrons in 
atom
Assertion : F atom has a less negative electron affinity than atom
Reason : Additional electrons are repelled more effectively by 3p electrons in atom than by 2p electrons in atom
Chemistry-General
Chemistry-
Assertion : 
is predominantly a covalent compound
Reason : Electronegativity difference between 
and Cl is too small
Assertion : is predominantly a covalent compound
Reason : Electronegativity difference between and Cl is too small
Chemistry-General
Chemistry-
Assertion: The first ionization energy of Be is greater than that of B
Reason: 2p orbital is lower in energy than 2s of
Assertion: The first ionization energy of Be is greater than that of B
Reason: 2p orbital is lower in energy than 2s of
Chemistry-General
Chemistry-
Assertion : The atomic radii of calcium is smaller than sodium.
Reason : Calcium has a lower nuclear charge than sodium
Assertion : The atomic radii of calcium is smaller than sodium.
Reason : Calcium has a lower nuclear charge than sodium
Chemistry-General
Chemistry-
Assertion: Dinegative anion of oxygen 
is quite common but dinegative anion of sulphur 
is less common
Reason: Covalency of oxygen is two
Assertion: Dinegative anion of oxygen is quite common but dinegative anion of sulphur is less common
Reason: Covalency of oxygen is two
Chemistry-General
Chemistry-
Assertion : Positive ions will be wider than parent atoms
Reason : Nuclear charge pulls them closer
Assertion : Positive ions will be wider than parent atoms
Reason : Nuclear charge pulls them closer
Chemistry-General
Chemistry-
In which block 106th element belongs
In which block 106th element belongs
Chemistry-General
