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Arjuna JEE 2.0 2026: Chemistry Classification of Elements and Periodicity in Properties

The document contains a set of questions and answers related to the classification of elements and periodicity in properties, specifically focusing on electron affinity and related concepts in chemistry. It includes multiple-choice questions with options and the corresponding answer key. The content is structured for JEE preparation, specifically for the year 2026.

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6 views2 pages

Arjuna JEE 2.0 2026: Chemistry Classification of Elements and Periodicity in Properties

The document contains a set of questions and answers related to the classification of elements and periodicity in properties, specifically focusing on electron affinity and related concepts in chemistry. It includes multiple-choice questions with options and the corresponding answer key. The content is structured for JEE preparation, specifically for the year 2026.

Uploaded by

sniperdino
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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JEE

Arjuna JEE 2.0 2026


Chemistry
DPP: 9
Classification of Elements and Periodicity in Properties

Q1 The correct order of electron affinity is: (D) IE2 (Mg) > IE2 (Al)
(A) O > O
−
> O
2−

Q6 Select the process which is exothermic?


(B) O 2−
> O
−
> O
−

(A) Cl(g) → Cl+(g) + e–


(C) O− > O > O
2−

(B) O–(g) + e– → O2-(g)


(D) O2− > O > O
−

(C) Ar – e– → Ar+
Q2 Which of the following element having electron (D) N–(g) → N(g) + e–
affinity greater than ‘S’.
Q7 Select the correct electron affinity order for the
(A) O (B) Se
given species:
(C) Te (D) Cl
(A) B > N (B) C+ > C
Q3 Electron affinity (EA) of the elements or ions is (C) F > Br (D) C > Si
incorrect show in:
Q8 Select the correct order of electron affinity?
(A) Cl– > Cl
(A) C > N > O > Se
(B) B > Cl–
(B) Se > O > C > N
(C) S > O
(C) O > C > N > Se
(D) Se > O
(D) C > N < O < Se
Q4 Which of the following element has positive
Q9 Let IE of M(g) is x eV, then:
value of ∆Heg(1)
(A) EGE of M+(g) is x eV
(A) Fluorine (B) Nitrogen
(B) EA of M+(g) is x eV
(C) Phosphorous (D) Oxygen
(C) IE1 of M+(g) is more than x eV
Q5 Identify the only incorrect statement: (D) EA of M(g) is x eV
(A) The electron gain enthalpy (ΔHeg) for an
Q10 In which of the following pair(s) EA of 2nd
isolated gaseous anion is always positive
element is/are more than EA of 1st element.
(B) Pauling's scale of electronegativity is a
(A) (N, O)
relative scale
(B) (Be2+, B)
(C) The number of electrons having l = 2 in La (Z =
(C) (P3–, Ca2+)
57) is equal to 21
(D) (F+, Cl+)

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JEE

Answer Key
Q1 (A) Q6 (D)

Q2 (D) Q7 (A, B, C)

Q3 (A) Q8 (B, D)

Q4 (B) Q9 (B, C)

Q5 (D) Q10 (A, C)

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