iCON Education - Periodic Table & Periodicity AP-EAPCET Test

Candidate Name

Student

Exam Name

AP-EAPCET

Test Name

Periodic Table & Periodicity

Subject

Chemistry

← Back to Periodic Table & Periodicity

Remaining Time

00:38:00

Question 1: Palette 1/38

AP-EAPCET 2025 MCQ

Among the ions $\mathrm{Mg}^{2+}, \mathrm{O}^{2-}, \mathrm{Al}^{3+}, \mathrm{F}^{-}, \mathrm{Na}^{+}$and $\mathrm{N}^{3-}$, the ion with largest size and ion with smallest size are respectively

$\mathrm{N}^{3-}, \mathrm{Mg}^{2+}$

$\mathrm{O}^{2-}, \mathrm{F}^{-}$

$\mathrm{Al}^{3+}, \mathrm{N}^{3-}$

$\mathrm{N}^{3-}, \mathrm{Al}^{3+}$

Question 2: Palette 2/38

AP-EAPCET 2025 MCQ

$ \text { Observe the following data : } $

$ \begin{array}{lllll} \hline \text { Ion } & Q^{a+} & X^{b+} & Y^{c+} & Z^{\alpha+} \\ \hline \text { Radius (pm) } & 53 & 66 & 40 & 100 \\ \hline \end{array} $

$Q^{a+}, X^{b+}, Y^{c+}, Z^{d+}$ are respectively

$\mathrm{Mg}^{2+}, \mathrm{Al}^{3+}, \mathrm{Na}^{+}, \mathrm{Si}^{4+}$

$\mathrm{Al}^{3+}, \mathrm{Si}^{4+}, \mathrm{Mg}^{2+}, \mathrm{Na}^{+}$

$\mathrm{Mg}^{2+}, \mathrm{Si}^{4+}, \mathrm{Al}^{3+}, \mathrm{Na}^{+}$

$\mathrm{Al}^{3+}, \mathrm{Mg}^{2+}, \mathrm{Si}^{4+}, \mathrm{Na}^{+}$

Question 3: Palette 3/38

AP-EAPCET 2025 MCQ

Which of the following orders is not correct for the given property?

$\mathrm{Li}<\mathrm{Na}<\mathrm{K}$ - metallic radius

$\mathrm{Br}<\mathrm{F}<\mathrm{Cl}$ - electron gain enthalpy

$\mathrm{C}<\mathrm{N}<\mathrm{O}$ - first ionisation enthalpy

$\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$- ionic radius

Question 4: Palette 4/38

AP-EAPCET 2025 MCQ

The order of negative electron gain enthalpy of $\mathrm{Li}, \mathrm{Na}$, $\mathrm{S}, \mathrm{Cl}$ is

$\mathrm{Na}>\mathrm{S}>\mathrm{Cl}>\mathrm{Li}$

$\mathrm{Cl}>\mathrm{S}>\mathrm{Li}>\mathrm{Na}$

$\mathrm{Cl}>\mathrm{Li}>\mathrm{S}>\mathrm{Na}$

$\mathrm{Li}>\mathrm{Na}>\mathrm{S}>\mathrm{Cl}$

Question 5: Palette 5/38

AP-EAPCET 2025 MCQ

The period and group numbers of the element having maximum electronegativity in the long form of periodic table respectively, are

2,17

3,17

1,18

2,16

Question 6: Palette 6/38

AP-EAPCET 2025 MCQ

Electronic configurations of four elements $A, B, C, D$ are given below

(A) $1 s^2 2 s^2 2 p^6 3 s^1$

(B) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^1$

(D) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^2$

The correct order of first ionisation enthalpy of these elements is

D $>$ B $>$ C $>$ A

C $>$ D $>$ B $>$ A

C $>$ A $>$ B $>$ D

D $>$ C $>$ B $>$ A

Question 7: Palette 7/38

AP-EAPCET 2025 MCQ

The correct order of the non-metallic character among the elements $\mathrm{B}, \mathrm{C}, \mathrm{N}, \mathrm{F}$ and Si is

$\mathrm{B}>\mathrm{C}>\mathrm{Si}>\mathrm{N}>\mathrm{F}$

$\mathrm{Si}>\mathrm{C}>\mathrm{B}>\mathrm{N}>\mathrm{F}$

$\mathrm{F}>\mathrm{N}>\mathrm{C}>\mathrm{B}>\mathrm{Si}$

$\mathrm{F}>\mathrm{N}>\mathrm{C}>\mathrm{Si}>\mathrm{B}$

Question 8: Palette 8/38

AP-EAPCET 2025 MCQ

Identify the incorrect order against the stated property.

$\mathrm{Ge}>\mathrm{Sn}>\mathrm{Pb}$ - Ionisation enthalpy

$\mathrm{Ge}>\mathrm{Pb}>\mathrm{Sn}$ - Melting point

$\mathrm{Pb}>\mathrm{Sn}>\mathrm{Ge}-$ Density

$\mathrm{Ge}>\mathrm{Pb}>\mathrm{Sn}$ - Electrical resistivity

Question 9: Palette 9/38

AP-EAPCET 2025 MCQ

The correct order of atomic radii of $\mathrm{C}, \mathrm{Al}$ and S is

$\mathrm{C}<\mathrm{Al}<\mathrm{S}$

S $<$ AI $<$ C

AI $<$ S $<$ C

$\mathrm{C}<\mathrm{S}<\mathrm{Al}$

Question 10: Palette 10/38

AP-EAPCET 2025 MCQ

Which of the following orders is not correct about the property shown against it?

$\mathrm{N}>\mathrm{O}>\mathrm{P}>\mathrm{S}$ - First ionisation enthalpy

$\mathrm{F}>\mathrm{Cl}>\mathrm{O}>\mathrm{S}$ - Negative electron gain enthalpy

$\mathrm{Fe}^{3+}<\mathrm{Fe}^{2+}<\mathrm{Fe}$ - Size

$\mathrm{O}>\mathrm{N}>\mathrm{S}>\mathrm{P}$ - Non-metallic character

Question 11: Palette 11/38

AP-EAPCET 2025 MCQ

$ \text { Match the following } $

$ \begin{array}{lllc} \hline & \text { List-I (Atomic number; Z) } & & \text { List-II (Block) } \\ \hline \text { A } & 112 & \text { I } & \text { s } \\ \hline \text { B } & 116 & \text { II } & \text { p } \\ \hline \text { C } & 88 & \text { III } & \text { d } \\ \hline \text { D } & 100 & \text { IV } & f \\ \hline \end{array} $

The correct answer is

A-III, B-I, C-II, D-IV

A-III, B-II, C-I, D-IV

A-IV, B-II, C-III, D-I

A-II, B-III, C-IV, D-I

Question 12: Palette 12/38

AP-EAPCET 2024 MCQ

$ \text { Match the following. } $

List I (Symbol of element)		List II (Group number)
A.	Mc	I.	16
B.	Lv	II.	17
C.	Fl	III.	15
D.	Ts	IV.	14

A -III, B - IV, C - I, D-II

A-IV, B-III, C-I, D-II

A - III, B-I, C-IV, D-II

A-II, B-IV, C-I, D-III

Question 13: Palette 13/38

AP-EAPCET 2024 MCQ

Two statements are given below.

Statement I : Nitrogen has more ionisation enthalpy and electronegativity than beryllium.

Statement II : $\mathrm{CrO}_3, \mathrm{~B}_2 \mathrm{O}_3$ are acidic oxide.

Correct answer is

Both Statement I and Statement II are correct.

Both Statement I and Statement II are not correct.

Statement I is correct but Statement II is not correct.

Statement I is not correct but Statement II is correct.

Question 14: Palette 14/38

AP-EAPCET 2024 MCQ

In which of the following sets, elements are not correctly arranged with the property shown in brackets?

$\mathrm{S}>\mathrm{Se}>\mathrm{O}$ (Electron gain enthalpy)

$\mathrm{F}>\mathrm{O}>\mathrm{Cl}$ (Electronegativity)

$\mathrm{Na}>\mathrm{Li}>\mathrm{Al}$ (Metallic radius)

$\mathrm{Na}>\mathrm{K}>\mathrm{Ba}$ (Metallic nature)

Question 15: Palette 15/38

AP-EAPCET 2024 MCQ

The correct order of atomic radii of $\mathrm{N}, \mathrm{F}, \mathrm{Al}, \mathrm{Si}$ is

$\mathrm{F}>\mathrm{N}>\mathrm{Si}>\mathrm{Al}$

$\mathrm{F}>\mathrm{N}>\mathrm{Al}>\mathrm{Si}$

$\mathrm{Al}>\mathrm{Si}>\mathrm{F}>\mathrm{N}$

$\mathrm{Al}>\mathrm{Si}>\mathrm{N}>\mathrm{F}$

Question 16: Palette 16/38

AP-EAPCET 2024 MCQ

The correct order of atomic radii of given element is

$\mathrm{B}<\mathrm{Be}<\mathrm{Mg}$

$\mathrm{Mg}<\mathrm{Be}<\mathrm{B}$

$\mathrm{Be}<\mathrm{B}<\mathrm{Mg}$

$\mathrm{B}<\mathrm{Mg}<\mathrm{Be}$

Question 17: Palette 17/38

AP-EAPCET 2024 MCQ

Which of the following orders is not correct against the given property?

$\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}<\mathrm{Al}<\mathrm{B}$ - melting point

$\mathrm{Al}<\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}<\mathrm{B}$ - Electronegativity

$\mathrm{B}<\mathrm{Al}<\mathrm{Ga}<$ In $<\mathrm{Tl}$ - density

$\mathrm{B}<\mathrm{Al}<\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}$ - atomic radius

Question 18: Palette 18/38

AP-EAPCET 2024 MCQ

$ \text { Match the following. } $

$ \text { List-I } $		$ \text { List-II } $
A	$ \text { Ionisation enthalpy } $	I	$ \mathrm{P}<\mathrm{Si}<\mathrm{Mg}<\mathrm{Na} $
B	$ \text { Metallic character } $	II	$ \mathrm{I}<\mathrm{N}<\mathrm{O}<\mathrm{F} $
C	$ \text { Electron gain enthalpy } $	III	$ \mathrm{B}<\mathrm{Be}<\mathrm{C}<\mathrm{O}<\mathrm{N} $
D	$ \text { Electronegativity } $	IV	$ \mathrm{l}<\mathrm{Br}<\mathrm{F}<\mathrm{Cl} $

A-III, B-IV, C-I, D-II

A-III, B-I, C-IV, D-II

A-IV, B-II, C-I, D-III

A-IV, B-III, C-I, D-II

Question 19: Palette 19/38

AP-EAPCET 2024 MCQ

Which of the following oxides is acidic in nature?

$\mathrm{GeO}_2$

$\mathrm{PbO}_2$

SnO

Question 20: Palette 20/38

AP-EAPCET 2024 MCQ

If the first ionisation enthalpy of $\mathrm{Li}, \mathrm{Be}$ and C respectively are $520,899,1086 \mathrm{~kJ} \mathrm{~mol}^{-1}$. The first ionisation enthalpy (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) of B will be

487

950

801

1402

Question 21: Palette 21/38

AP-EAPCET 2024 MCQ

Match of following.

List I (Element)	List II (Electron gain enthalpy (in $\mathrm{kJ} \mathrm{mol}^{-1}$ )
A F	I -141
B Cl	II -328
C O	III -200
D S	IV -349

The correct answer is

A - II, B $-N, C-1, D-$ III

$A=N, B-N, C-I, D-B$

$A-$ III, $B-I I, C=I N, D-1$

A - I, B - ill, C - N, D - 1

Question 22: Palette 22/38

AP-EAPCET 2024 MCQ

Identify the basic oxide from the following.

$\mathrm{C}_2 \mathrm{O}_3$

$\mathrm{CrO}_3$

$\mathrm{V}_2 \mathrm{O}_5$

$\mathrm{V}_2 \mathrm{O}_3$

Question 23: Palette 23/38

AP-EAPCET 2022 MCQ

In which of the following oxides of three elements $X, Y$ and $Z$ are correctly arranged in the increasing order of acidic nature. The electronic configurations of $X, Y$ and $Z$ are $[\mathrm{Ne}] 3 s^2 3 p^1, [\mathrm{Ne}] 3 s^2 3 p^5$. [Ne] $3 s^2$ respectively

$X< Y< Z$

$Y< Z< X$

$Z< X< Y$

$X< Z< Y$

Question 24: Palette 24/38

AP-EAPCET 2022 MCQ

Assertion (A) 16 th group elements have higher ionisation enthalpy values than 15 th group elements in the corresponding periods.

Reason (R) 15 th group elements have half-filled stable electronic configurations.

Both A and R are correct and R is the correct explanation of A.

Both A and R are correct but R is not the correct explanation of A.

A is correct but R is incorrect

A is incorrect but R is correct

Question 25: Palette 25/38

AP-EAPCET 2022 MCQ

Assertion (A) Fluorine has smaller negative electron gain enthalpy than chlorine.

Reason (R) The electron-electron repulsion is higher in chlorine than in fluorine.

Both A and R are correct and R is the correct explanation of A .

Both A and R are correct but R is not the correct explanation of A .

A is correct but R is incorrect

A is incorrect but R is correct

Question 26: Palette 26/38

AP-EAPCET 2022 MCQ

In which of the following, elements are arranged in the correct order of their electron gain enthalpies?

$\mathrm{F}>\mathrm{S}>\mathrm{O}>\mathrm{N}$

$\mathrm{F}>\mathrm{O}>\mathrm{S}>\mathrm{N}$

$\mathrm{F}>\mathrm{O}>\mathrm{N}>\mathrm{S}$

$\mathrm{F}>\mathrm{N}>\mathrm{O}>\mathrm{S}$

Question 27: Palette 27/38

AP-EAPCET 2022 MCQ

In second period of the long form of the periodic table an element $X$ has second lowest first ionisation enthalpy and element $Y$ has second highest first ionisation enthalpy values. What are $X$ and $Y$ ?

B, F

Be, Ne

Be, O

C, O

Question 28: Palette 28/38

AP-EAPCET 2022 MCQ

Lithium shows diagonal relationship with element '$X$' and aluminium with $Y . X$ and $Y$ respectively are

$\mathrm{Mg}, \mathrm{Be}$

$\mathrm{Be}, \mathrm{Mg}$

$\mathrm{Na}, \mathrm{Si}$

$\mathrm{B}, \mathrm{Be}$

Question 29: Palette 29/38

AP-EAPCET 2022 MCQ

The correct order of the metallic character of the elements $\mathrm{Be}, \mathrm{Al}, \mathrm{Na}, \mathrm{K}$ is

$\mathrm{K}>\mathrm{Na}>\mathrm{Al}>\mathrm{Be}$

$\mathrm{K}>\mathrm{Al}>\mathrm{Na}>\mathrm{Be}$

$\mathrm{Al}>\mathrm{K}>\mathrm{Na}>\mathrm{Be}$

$\mathrm{Na}>\mathrm{K}>\mathrm{Be}>\mathrm{Al}$

Question 30: Palette 30/38

AP-EAPCET 2022 MCQ

Which of the following tetrahalides does not exist?

$\mathrm{CCl}_4$

$\mathrm{SiCl}_4$

$\mathrm{PbCl}_4$

$\mathrm{Pbl}_4$

Question 31: Palette 31/38

AP-EAPCET 2021 MCQ

The electronegativity of the given elements increases in the order.

C, N, Si, P

N, Si, C, P

Si, P, C, N

P, Si, N, C

Question 32: Palette 32/38

AP-EAPCET 2021 MCQ

The first ionisation enthalpies of $\mathrm{Mg}$ and $\mathrm{Al}$ can be expected to be ............ .

$\mathrm{IE}_1(\mathrm{Mg})=577.5 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{IE}_1(\mathrm{Al})=577.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$

$\mathrm{IE}_1(\mathrm{Mg})=577.5 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{IE}_1(\mathrm{Al})=737.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$

$\mathrm{IE}_1(\mathrm{Mg})=737.7 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{IE}_1(\mathrm{Al})=737.7 \mathrm{~kJ} \mathrm{~mol}^{-1}$

$\mathrm{IE}_1(\mathrm{Mg})=737.7 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{IE}_1(\mathrm{Al})=577.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$

Question 33: Palette 33/38

AP-EAPCET 2021 MCQ

Which of the following statements is/are correct?

1. Mercury is the only metal that exists as liquid at room temperature.

2. Among non-metals, carbon has the highest melting point.

3. Hydrogen is the most abundant element in the universe.

4. Oxygen is the most abundant element in the Earth's crust.

1, 2, 3, 4

Question 34: Palette 34/38

AP-EAPCET 2021 MCQ

The element with outer electronic configuration $(n-1) d^2 n s^2$, where $n=4$, would belong to

2nd period, 2nd group

4th period, 4th group

4th period, 2nd group

2nd period, 4th group

Question 35: Palette 35/38

AP-EAPCET 2021 MCQ

Choose the correct option regarding the following statements

Statement 1 Nitrogen has lesser electron gain enthalpy than oxygen.

Statement 2 Oxygen has lesser ionisation enthalpy than nitrogen.

Statement 1 is correct but statement 2 is incorrect.

Both statements 1 and 2 are incorrect.

Both statements 1 and 2 are correct.

Statement 1 is incorrect but statement 2 is correct.

Question 36: Palette 36/38

AP-EAPCET 2021 MCQ

Among the given configurations, identify the element which does not belong to the same family as the others?

$[\mathrm{Ne}] 3 s^2 3 p^5$

$[\mathrm{Ar}] 3 d^{10} 4 s^2$

$[\mathrm{Kr}] 4 d^{10} 5 \mathrm{~s}^2$

$[\mathrm{Xe}] 4 f^{14} 5 d^{10} 4 s^2$

Question 37: Palette 37/38

AP-EAPCET 2021 MCQ

Which statements among the following are correct about helium?

(i) Liquid helium is used to sustain powerful superconducting magnets.

(ii) Liquid helium is useful to carry low temperature experiments.

(iii) It is a heavy gas.

(iv) It is a flammable gas.

(i) and (ii)

(ii) and (iii)

(i) and (iv)

(iii) and (iv)

Question 38: Palette 38/38

AP-EAPCET 2021 MCQ

Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements?

1. Nitrogen (N) 2. Phosphorus (P) 3. Chlorine (Cl) 4. Fluorine (F)

P < N < F < Cl

N < P < F < Cl

Cl < F < P < N

F < Cl < N < P

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