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Classification of Elements and Periodicity in Properties

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NEET 2024 Q1 Errorless Latest Trend MCQ
Arrange the following elements in increasing order of electronegativity N, O, F, C, Si Choose the correct answer from the options given below
A.
Si < C < N < O < F
B.
Si < C < O < N < F
C.
O < F < N < C < Si
D.
F < O < N < C < Si
NEET 2024 Q2 Errorless Latest Trend MCQ
Arrange the following elements in increasing order of first ionization enthalpy Li, Be, B, C, N. Choose the correct answer from the options given below
A.
Li < Be < B < C < N
B.
Li < Be > B < C < N
C.
Li < Be < C < B < N
D.
Li < Be < N < B < C
JEE (Main) 2023 Q3 Errorless Latest Trend MCQ
Which of the following represents the correct order of metallic character of the given elements
A.
Si < Be < Mg < K
B.
Be < Si < Mg < K
C.
K < Mg < Be < Si
D.
Be < Si < K < Mg
JEE (Main) 2023 Q4 Errorless Latest Trend MCQ
The correct order of hydration enthalpies is
(A) $K^{+}$ (B) $Rb^{+}$ (C) $Mg^{2+}$ (D) $Cs^{+}$ (E) $Ca^{2+}$
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) 2023 Q5 Errorless Latest Trend MCQ
The correct increasing order of the ionic radii is
A.
$Cl^{-} < Ca^{2+} < K^{+} < S^{2-}$
B.
$K^{+} < S^{2-} < Ca^{2+} < Cl^{-}$
C.
$S^{2-} < Cl^{-} < Ca^{2+} < K^{+}$
D.
$Ca^{2+} < K^{+} < Cl^{-} < S^{2-}$
JEE (Main) 2022 Q6 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) 2022 Q7 Errorless Latest Trend MCQ
The correct order of electron gain enthalpies of Cl, F, Te and Po is
A.
F < Cl < Te < Po
B.
Po < Te < F < Cl
C.
Te < Po < Cl < F
D.
Cl < F < Te < Po
JEE (Main) 2022 Q8 Errorless Latest Trend MCQ
Which of the following elements in considered as a metalloid
A.
Sc
B.
Pb
C.
Bi
D.
Te
JEE (Main) 2022 Q9 Errorless Latest Trend MCQ
The correct order of increasing ionic radii is
A.
$Mg^{2+} < Na^{+} < F^{-} < O^{2-} < N^{3-}$
B.
$N^{3+} < O^{2-} < F^{-} < Na^{+} < Mg^{2+}$
C.
$F^{-} < Na^{+} < O^{2-} < Mg^{2+} < N^{3-}$
D.
$Na^{+} < F^{-} < Mg^{2+} < O^{2-} < N^{3-}$
JEE (Main) 2022 Q10 Errorless Latest Trend MCQ
Element “E” belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above ‘E’ 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) 2022 Q11 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) 2022 Q12 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) 2022 Q13 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) 2022 Q14 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.
JEE (Main) 2022 Q15 Errorless Latest Trend MCQ
The IUPAC nomenclature of an element with electronic configuration $[Rn]5f^{14}6d^{17}s^2$ is
A.
Unnilbium
B.
Unnilunium
C.
Unnilquadium
D.
Unniltrium
JEE (Main) 2022 Q16 Errorless Latest Trend MCQ
The correct order of density is
A.
Be > Mg > Ca > Sr
B.
Sr > Ca > Mg > Be
C.
Sr > Be > Mg > Ca
D.
Be > Sr > Mg > Ca
JEE (Main) 2022 Q17 Errorless Latest Trend MCQ
The total number of acidic oxides from the following Column is: NO, $N_{2}O$ , $B_{2}O_{3}$ , $N_{2}O_{5}$ , CO, $SO_{3}$ , $P_{4}O_{10}$
A.
3
B.
4
C.
5
D.
6
JEE (Main) 2022 Q18 Errorless Latest Trend MCQ
The metal that has very low melting point and its periodic position is closer to a metalloid is
A.
Al
B.
Ga
C.
Se
D.
In
JEE (Main) 2022 Q19 Errorless Latest Trend MCQ
Outermost electronic configurations of four elements A, B, C, D are given below
(A) $3s^{2}$ (B) $3s^{2}3p^{1}$ (C) $3s^{2}3p^{3}$ (D) $3s^{2}3p^{4}$
The correct order of first ionization enthalpy for them is
A.
$(\mathrm{A}) < (\mathrm{B}) < (\mathrm{C}) < (\mathrm{D})$
B.
$(\mathrm{B}) < (\mathrm{A}) < (\mathrm{D}) < (\mathrm{C})$
C.
$(\mathrm{B}) < (\mathrm{D}) < (\mathrm{A}) < (\mathrm{C})$
D.
$(\mathrm{B}) < (\mathrm{A}) < (\mathrm{C}) < (\mathrm{D})$
JEE (Main) 2022 Q20 Errorless Latest Trend MCQ
An element A of group 1 shows similarity to an element B belonging to group 2. If A has maximum hydration enthalpy in group 1 then B is
A.
Mg
B.
Be
C.
Ca
D.
Sr
JEE (Main) 2022 Q21 Errorless Latest Trend MCQ
In which of the following pairs, electron gain enthalpies of constituent elements are nearly the same or identical A) Rb and Cs B) Na and K C) Ar and Kr(D) I and At Choose the correct answer from the options given below
A.
A and B only
B.
B and C only
C.
A and C only
D.
C and D only
JEE (Main) 2022 Q22 Errorless Latest Trend MCQ
The correct decreasing order for metallic character is
A.
Na > Mg > Be > Si > P
B.
P > Si > Be > Mg > Na
C.
Si > P > Be > Na > Mg
D.
Be > Na > Mg > Si > P
JEE (Main) 2022 Q23 Errorless Latest Trend MCQ
The first ionization enthalpy of Na, Mg and Si respectively, are : 496, 737 and 786 kJ mol $^{-1}$ . The first ionization enthalpy (kJ mol $^{-1}$ ) of Al is
A.
487
B.
768
C.
577
D.
856
NEET 2022 Q24 Errorless Latest Trend MCQ
The IUPAC name of an element with atomic number 119 is
A.
unununnium
B.
ununoctium
C.
ununennium
D.
unnilennium
JEE (Main) 2021 Q25 Errorless Latest Trend MCQ
What is the correct order of the following elements with respect to their density
A.
$Cr < Zn < Co < Cu < Fe$
B.
$Zn < Cu < Co < Fe < Cr$
C.
$Zn < Cr < Fe < Co < Cu$
D.
$Cr < Fe < Co < Cu < Zn$