Match the following elements, given as hints to their first, second ionisation enthalpies and electron gain enthalpies. Elements \table ,,\\DeltaH_1,\\DeltaH_2,\\Delta_{eg}H i. Most reactive non metal \table\A. 419,3051,-48 ii. Most reactive metal \table \B. 1681,3374,-328 iii. Least reactive element \table \C. 738,1451,-40 iv. Metal forming binary halide \table \D. 2372,5251,+48

Correct Answer is : (i−B),(ii−A),(iii−D),(iv−C)

(\i-\B), (\ii-\A), (\iii-\D), (\iv-\C)

(\i-\A), (\ii-\B), (\iii-\D), (\iv-\C)

(\i-\B), (\ii-\A), (\iii-\C), (\iv-\D)

(\i-\B), (\ii-\D), (\iii-\A), (\iv-\C)

AP EAMCET Engineering 23 Sep 2020 Shift 1 Paper

Section: Chemistry

Question : 131 of 160

Marks: +1, -0

Match the following elements, given as hints to their first, second ionisation enthalpies and electron gain enthalpies.

Elements

‌

ΔH1

ΔH2

ΔegH

i. Most reactive non metal

A.419

3051

−48

ii. Most reactive metal

B.1681

3374

−328

iii. Least reactive element

C.738

1451

−40

iv. Metal forming binary halide

D.2372

5251

+48

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