← Back to Chemistry-I

Classification of Elements and Periodicity in Properties

301 Questions Start Errorless Test
All Exams Errorless
JEE (Main) July 2022 Q26 Errorless Latest Trend MCQ
The IUPAC nomenclature of an element with electronic configuration $[Rn]5f^{14}6d^{1}7s^{2}$ is
A.
Unnilbium
B.
Unnilunium
C.
Unnilquadium
D.
Unniltrium
JEE (Main) July 2022 Q27 Errorless Latest Trend MCQ
Choose the correct order of density of the alkali metals
A.
$$<br /> L i < K < N a < R b < C s<br /> $$
B.
$$<br /> L i < N a < K < R b < C s<br /> $$
C.
$$<br /> C s < R b < K < N a < L i<br /> $$
D.
$$<br /> L i < N a < K < C s < R b<br /> $$
JEE (Main) July 2022 Q28 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) July 2022 Q29 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) July 2022 Q30 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) July 2022 Q31 Errorless Latest Trend MCQ
The incorrect statement is
A.
The first ionization enthalpy of K is less than that of Na and Li
B.
Xe does not have the lowest first ionization enthalpy in its group
C.
The first ionization enthalpy of element with atomic number 37 is lower than that of the element with atomic number 38
D.
The first ionization enthalpy of Ga is higher than that of the d-block element with atomic number 30
JEE (Main) July 2022 Q32 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.
(A) < (B) < (C) < (D)
B.
(B) < (A) < (D) < (C)
C.
(B) < (D) < (A) < (C)
D.
(B) < (A) < (C) < (D)
JEE (Main) July 2022 Q33 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) July 2022 Q34 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) July 2022, Jan. 2023 Q35 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) July 2022 Q36 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
JEE (Main) Feb. 2021 Q37 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.
$Cr < Fe < Co < Cu < Zn$
JEE (Main) Feb. 2021 Q38 Errorless Latest Trend MCQ
The incorrect statement among the following is
A.
$VOSO_4$ is a reducing agent
B.
$Cr_2O_3$ is an amphoteric oxide
C.
$RuO_4$ is an oxidizing agent
D.
Red colour of ruby is due to the presence of $Co^{3+}$
JEE (Main) Feb. 2021 Q39 Errorless Latest Trend MCQ
The correct order of bond dissociation enthalpy of halogens is
A.
$Cl_{2} > F_{2} > Br_{2} > I_{2}$
B.
$I_{2} > Br_{2} > Cl_{2} > F_{2}$
C.
$Cl_{2} > Br_{2} > F_{2} > I_{2}$
D.
$F_{2} > Cl_{2} > Br_{2} > I_{2}$
JEE (Main) Feb. 2021 Q40 Errorless Latest Trend MCQ
Match Column ā€“ I (Electronic configuration of elements) with Column ā€“ II (Ī”įµ¢ in kJ molā»Ā¹)
Choose the most appropriate answer from the options given below
Column-IColumn-II
(P)1sĀ²2sĀ²
(Q)1sĀ²2sĀ²2pā“
(R)1sĀ²2sĀ²2pĀ³
(S)1sĀ²2sĀ²2pĀ¹
(I)801
(II)899
(III)1314
(IV)1402
A.
P - II, Q - III, R - IV, S -I
B.
P - I, Q - IV, R - III, S - II
C.
P - I, Q - III, R -IV, S - II
D.
P - IV, Q - I, R- II, S - III
JEE (Main) Feb. 2021 Q41 Errorless Latest Trend MCQ
The correct order of electron gain enthalpy is
A.
$S > Se > Te > O$
B.
$Te > Se > S > O$
C.
$O > S > Se > Te$
D.
$S > O > Se > Te$
JEE (Main) 2021 Q42 Errorless Latest Trend MCQ
Identify the elements X and Y using the ionization energy values given below
Ionization energy(kJ/mol)
$1^{st}$ $2^{nd}$
X4954563
Y7311450
A.
$X = Na;Y = Mg$
B.
$X = Mg;Y = F$
C.
$X = Mg;Y = Na$
D.
$X = F;Y = Mg$
JEE (Main) March 2021 Q43 Errorless Latest Trend MCQ
The characteristics of elements X, Y and Z with atomic numbers, 33, 53 and 83 respectively are
A.
X and Y are metalloids and Z is a metal
B.
X is a metalloid, Y is a non-metal and Z is a metal
C.
X, Y and Z are metals
D.
X and Z are non-metals and Y is a metalloid
JEE (Main) March 2021 Q44 Errorless Latest Trend MCQ
The ionic radius of $Na^{+}$ ions is 1.02 ƅ. The ionic radii (in ƅ) of $Mg^{2+}$ and $Al^{3+}$ , respectively, are
A.
1.05 and 0.99
B.
0.72 and 0.54
C.
0.85 and 0.99
D.
0.68 and 0.72
JEE (Main) March 2021 Q45 Errorless Latest Trend MCQ
The first ionization energy of magnesium is smaller as compared to that of elements X and Y, but higher than that of Z, the elements X,Y and Z, respectively, are
A.
Chlorine, lithium and sodium
B.
Argon, lithium and sodium
C.
Argon, chlorine and sodium
D.
Neon, sodium and chlorine
JEE (Main) July 2021 Q46 Errorless Latest Trend MCQ
Which one of the following statements for D.I. Mendeleeff, is incorrect
A.
He authored the textbook ā€“ Principles of Chemistry
B.
At the time, he proposed Periodic Table of elements structure of atom was known
C.
Element with atomic number 101 is named after him
D.
He invented accurate barometer
JEE (Main) Aug. 2021 Q47 Errorless Latest Trend MCQ
Given below are tuto statements one labeled as Assertion (A) and the other is labelled as Reason Assertion (A) : Barium carbonate is insoluble in water and is highly Stable. Reason (R) : The thermal stability of the carbonates increases with cationic size. 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) Aug. 2021 Q48 Errorless Latest Trend MCQ
Which one of the following correctly represents the order of stability oxides $X_{2}O$ ; (X-halogen)
A.
Br > I > Cl
B.
I > Cl > Br
C.
Br > Cl > I
D.
Cl > I > Br
JEE (Main) March 2021, June 2022 Q49 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) Jan. 2020 Q50 Errorless Latest Trend MCQ
The electron gain enthalpy (in kJ/mol) of fluorine, chlorine, bromine and iodine, respectively are
A.
-333, -349, -325 and -296
B.
-296, -325, -333 and -349
C.
-333, -325, -349 and -296
D.
-349, -333, -325 and -296