Q39.The electron affinity of chlorine is 3.7eV.1 gram of chlorine is completely converted to Cl− ion in a gaseous state. (1eV = 23.06kcalmol−1). Energy released in the process is (1) 4.8kcal (2) 7.2kcal (3) 8.2kcal (4) 2.4kcal
What This Question Tests
This question requires calculating the total energy released during the formation of Cl- ions from a given mass of chlorine, incorporating electron affinity and unit conversions.
Concepts Tested
Formulas Used
Moles = mass / molar mass
Total energy = moles * electron affinity (per mole)
📚 NCERT Sections This Tests
12.4 — The Ground State Energy Of Hydrogen Atom Is –13.6 Ev. What Are The
Physics Class 12 · Chapter 12
12.4 The ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of the electron in this state?
12.3 — A Difference Of 2.3 Ev Separates Two Energy Levels In An Atom. What
Physics Class 12 · Chapter 12
12.3 A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom make a transition from the upper level to the lower level?
13.2 — Obtain The Binding Energy Of The Nuclei 5626Fe And 20983 Bi In Units Of
Physics Class 12 · Chapter 13
13.2 Obtain the binding energy of the nuclei 5626Fe and 20983 Bi in units of MeV from the following data: m ( 5626Fe ) = 55.934939 u m ( 20983 Bi ) = 208.980388 u
📋 Question Details
- Chapter
- Periodic Table & Properties
- Topic
- Electron affinity calculation
- Year
- 2012
- Shift
- 07 May Online
- Q Number
- Q39
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 3: Classification of Elements and Periodicity in Properties
More from this Chapter
Q87.Which one of the following substances has the highest proton affinity? (1) H2 S (2) NH3 (3) PH3 (4) H2O
Q68.Which of the following atoms has the lowest ionization potential? (1) 147 N (2) 13355 Cs (3) 4018Ar (4) 168 O
Q82.Which one the following sets of ions represents the collection of isoelectronic species? (1) K+, Ca2+, Sc3+, Cl− (2) Na+, Mg2+, Al3+, Cl− (3) K+, Cl−, Mg2+, Sc3+ (4) Na+, Ca2+, Sc3+, F−
Q83.Which one the following ions has the highest value of ionic radius? (1) Li+ (2) F− (3) O2− (4) B3+