Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202023 Sep 2020Morning ShiftChemistryStates of MatterActual

Match the following elements, given as hints to their first, second ionization enthalpies and electron gain enthalpies. List- I List- II i ) Most reactive non-metal A ) ∆ H 1 = 419 , ∆ H 2 = 3051 , ∆ Eg H = - 48 ii ) Most reactive metal B ) ∆ H 1 = 1681 , ∆ H 2 = 3374 , ∆ Eg H = - 328 iii ) Least reactive element C ) ∆ H 1 = 738 , ∆ H 2 = 1451 , ∆ Eg H = - 40 iv )

Options

  1. A( i - B ) , ( i   i - A ) , ( i   i   i - D ) , ( i   v - C )
  2. B( i - A ) , ( i   i - B ) , ( i   i   i - D ) , ( i   v - C )
  3. C( i - B ) , ( i   i - A ) , ( i   i   i - C ) , ( i   v - D )
  4. D( i - B ) , ( i   i - D ) , ( i   i   i - A ) , ( i   v - C )

Correct answer

A. ( i - B ) , ( i   i - A ) , ( i   i   i - D ) , ( i   v - C )

Step-by-step solution

Most reactive non-metal is B as it has highest negative electron gain enthalpy. Most reactive metal is A as it has the least first ionization enthalpy. The least reactive element is D as it has high ionization energy and positive electron gain enthalpy. Metal forming binary halide is C as it has comparable successive ionization energy.

Practice States of Matter on Quantrex Academy →

More from States of Matter

If the molar masses of two chemically non-reacting gases A ₂ and B ₂ are 28 amu and 32 amu respectively and 0.8g of A ₂ and 0.4g of B ₂ are enclosed in a container with a total pre 2026Identify the correct graph for an ideal gas ( y -axis = compressibility factor, Z ; x -axis = pressure, p ) 2025Identify the correct statements from the following. I. Glass is an extremely viscous liquid. II. Increase in temperature decreases the surface tension of liquids. III. Compressibil 20252.0 g of H ₂ diffuses through a porous container in 10 minutes. How many grams of O ₂ would diffuse from the same container in the same time under similar conditions? 2025At T ( K ) , the u _ rms of CO ₂ is 412 ~ms ⁻¹ . What is its kinetic energy (in kJ mol ⁻¹ ) at the same temperature ? ( CO ₂=44 u ) . 2025The correct equation for one mole of a real gas is (a, b are constants) 2025A and B are ideal gases. At T(K), 2 L of ' A ' with a pressure of 1 bar is mixed with 4 L of ' B ' with a pressure p _ B bar in a 100 L flask. The pressure exerted by gaseous mixtu 2025Consider the following Statement-I : If thermal energy is stronger than intermolecular forces, the substance prefers to be in gaseous state. Statement-II : At constant temperature, 2025 Full States of Matter list All AP EAMCET PYQs