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Classification of Elements and Periodicity in Properties

296 Questions MCQ (Single Correct) Start Errorless Test
All Exams Errorless
JEE (Main) Jan. 2025 Q1 Errorless Latest Trend MCQ
The element that does not belong to the same period of the remaining elements (modern periodic table) is
A.
Palladium
B.
Iridium
C.
Osmium
D.
Platinum
JEE (Main) Jan. 2025 Q2 Errorless Latest Trend MCQ
The incorrect decreasing order of atomic radii is
A.
Mg > Al > C > O
B.
Al > B > N > F
C.
Be > Mg > Al > Si
D.
Si > P > Cl > F
JEE (Main) Jan. 2025 Q3 Errorless Latest Trend MCQ
An element ā€˜Eā€™ has the ionisation enthalpy value of $374\,kJ\,mol^{-1}$ . ā€˜Eā€™ reacts with elements A, B, C and D with electron grain enthalpy value of -328, -349, -325 and $-295\,kJ\,mol^{-1}$ , respectively. The correct order of the products EA, EB, EC and ED in terms of ionic character is
A.
EB > EA > EC > ED
B.
ED > EC > EA > EB
C.
EA > EB > EC > ED
D.
ED > EC > EB > EA
JEE (Main) Jan. 2024 Q4 Errorless Latest Trend MCQ
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The first ionization enthalpy decreases across a period. Reason R: The increasing nuclear charge outweighs the shielding across the period. In the light of the above statements, choose the most appropriate from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
JEE (Main) Jan. 2024 Q5 Errorless Latest Trend MCQ
The element having the highest first ionization enthalpy is
A.
Si
B.
Al
C.
N
D.
C
JEE (Main) Jan. 2024 Q6 Errorless Latest Trend MCQ
Given below are two statements: Statement I : Along the period, the chemical reactivity of the element gradually increases from group 1 to group 18. Statement II : The nature of oxides formed by group 1 element is basic while that of group 17 elements is acidic. In the light of the above statements, choose the most appropriate from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
JEE (Main) Jan. 2024 Q7 Errorless Latest Trend MCQ
Choose the correct statements about the hydrides of group 15 elements.
(A) The stability of the hydrides decreases in the order $NH_{3} > PH_{3} > AsH_{3} > SbH_{3} > BiH_{3}$
(B) The reducing ability of the hydrides increases in the order $NH_{3} < PH_{3} < AsH_{3} < SbH_{3} < BiH_{3}$
(C) Among the hydrides, $NH_{3}$ is strong reducing agent while $BiH_{3}$ is mild reducing agent
(D) The basicity of the hydrides increases in the order $NH_{3} < PH_{3} < AsH_{3} < SbH_{3} < BiH_{3}$ Choose the most appropriate from the options given below
A.
(B) and (C) only
B.
(C) and (D) only
C.
(A) and (B) only
D.
(A) and (D) only
JEE (Main) Jan. 2024 Q8 Errorless Latest Trend MCQ
The correct sequence of electron gain enthalpy of the elements Columned below is A. Ar B. Br C. F D. S Choose the most appropriate from the options given below
A.
C > B > D > A
B.
A > D > B > C
C.
A > D > C > B
D.
D > C > B > A
JEE (Main) Jan. 2024 Q9 Errorless Latest Trend MCQ
Consider the following elements. Group $\downarrow$ A'B' $\longrightarrow$ Period C'D' Which of the following is/are true about A', B', C' and D' A. Order of atomic radii: B' < A' < D' < C'. B. Order of metallic character: B' < A' < D' < C'. C. Size of the element: D' < C' < B' < A'. D. Order of ionic radii: B' + < A' + < D' + < C' +. Choose the correct answer from the options given below
A.
A only
B.
A, B and D only
C.
A and B only
D.
B, C and D only
JEE (Main) Jan. 2024 Q10 Errorless Latest Trend MCQ
In case of isoelectronic species the size of $F^{-}$ , Ne and $Na^{+}$ is affected by
A.
Principal quantum number (n)
B.
None of the factors because their size is the same
C.
Electron-electron interaction in the outer orbitals
D.
Nuclear charge (z)
JEE (Main) Jan. 2024 Q11 Errorless Latest Trend MCQ
Given below are two statements: Statement I: Both metal and non-metal exist in p and d-block elements. Statement II: Non-metals have higher ionization enthalpy and higher electronegativity than the metals. In the light of the above statements, choose the most appropriate answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
JEE (Main) Jan. 2023 Q12 Errorless Latest Trend MCQ
The correct order of hydration enthalpies is
(A) $K^{+}$ (B) $Rb^{+}$ (C) $Mg^{2+}$ (D) $Cs^{+}$
(E) $C a ^ {2 +}$
Choose the correct answer from the options given below
A.
$C > A > E > B > D$
B.
$E > C > A > B > D$
C.
$C > E > A > D > B$
D.
$C > E > A > B > D$
JEE (Main) Jan. 2023 Q13 Errorless Latest Trend MCQ
Given below are two statements: Statement I : The decrease in first ionization enthalpy from B to Al is much larger than that from Al to Ga. Statement II : The d orbitals in Ga are completely filled. In the light of the above statements, choose the most appropriate answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
JEE (Main) Jan. 2023, April 2024 Q14 Errorless Latest Trend MCQ
Match Column-I (Atomic number) with Column-II (Block of periodic table)
Choose the correct answer from the options given below
Column-IColumn-II
(P)37
(Q)78
(R)52
(S)65
(I)p-block
(II)d-block
(III)f-block
(IV)s-block
A.
P-II, Q-IV, R-I, S-III
B.
P-I, Q-III, R-IV, S-II
C.
P-IV, Q-III, R-II, S-I
D.
P-IV, Q-II, R-I, S-III
JEE (Main) April 2023 Q15 Errorless Latest Trend MCQ
The difference between electron gain enthalpies will be maximum between
A.
Ne and F
B.
Ne and Cl
C.
Ar and Cl
D.
Ar and F
JEE (Main) April 2023 Q16 Errorless Latest Trend MCQ
The correct order of electronegativity for given elements is
A.
C > P > At > Br
B.
Br > P > At > C
C.
P > Br > C > At
D.
Br > C > At > P
JEE (Main) April 2023 Q17 Errorless Latest Trend MCQ
For elements $B, C, N, Li, Be, O$ and $F$ the correct order of first ionization enthalpy is
A.
$Li < Be < B < C < N < O < F$
B.
$B > Li > Be > C > N > O > F$
C.
$Li < B < Be < C < O < N < F$
D.
$Li < Be < B < C < O < N < F$
JEE (Main) April 2023 Q18 Errorless Latest Trend MCQ
The pair of lanthanides in which both elements have high third-ionization energy is
A.
Eu, Gd
B.
Eu, Yb
C.
Lu, Yb
D.
Dy, Gd
JEE (Main) June 2022 Q19 Errorless Latest Trend MCQ
Given below are the oxides $Na_{2}O, As_{2}O_{3}, N_{2}O, NO$ and $Cl_{2}O_{7}$ Number of amphoteric oxides is
A.
0
B.
1
C.
2
D.
3
JEE (Main) June 2022 Q20 Errorless Latest Trend MCQ
Which of the following elements in considered as a metalloid
A.
Sc
B.
Pb
C.
Bi
D.
Te
JEE (Main) June 2022 Q21 Errorless Latest Trend MCQ
Element ā€œEā€ belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above ā€˜Eā€™ in the group is
A.
$3s^{2}.3p^{4}$
B.
$3d^{10}.4s^{2},4p^{4}$
C.
$4d^{10}.5s^{2},5p^{4}$
D.
$2s^{2},p^{4}$
JEE (Main) June 2022 Q22 Errorless Latest Trend MCQ
Given below are two statements: Statement I: The pentavalent oxide of group 15 element $E_{2}O_{5}$ is less acidic than trivalent oxide $E_{2}O_{3}$ of the same element. Statement II: The acidic character of trivalent oxide of group 15 elements $E_{2}O_{3}$ decreases down the group. In light of the above statements choose most appropriate answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
JEE (Main) June 2022 Q23 Errorless Latest Trend MCQ
Among the following basic oxide is
A.
$SO_{3}$
B.
$SiO_{2}$
C.
CaO
D.
$Al_{2}O_{3}$
JEE (Main) June 2022 Q24 Errorless Latest Trend MCQ
The electronic configuration of Pt (atomic number 78) is
A.
$[Xe]4f^{14}5d^{9}6s^{1}$
B.
$[Kr]4f^{14}5d^{10}$
C.
$[Xe]4f^{14}5d^{10}$
D.
$[Xe]4f^{14}5d^{8}6s^{2}$
JEE (Main) June 2022 Q25 Errorless Latest Trend MCQ
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : The first ionization enthalpy for oxygen is lower than that of nitrogen. Reason R : The four electrons in 2p orbitals of oxygen experience more electron-electron repulsion. In the light of the above statements, choose the correct answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.