Class 11 Chem - Periodic Classification - MERIT YARD
Class 11 Chem - Periodic Classification - MERIT YARD
1 / 40The "Modern Periodic Law" states that properties of elements are periodic functions of their:
A) Atomic mass
B) Atomic radius
C) Atomic number
D) Isotopic mass
2 / 40Mendeleev's original Periodic Table was strictly based on increasing:
A) Atomic number
B) Atomic mass
C) Neutron number
D) Electron configuration
3 / 40The horizontal rows in the periodic table are scientifically called:
A) Groups
B) Blocks
C) Families
D) Periods
4 / 40The vertical columns in the periodic table are scientifically called:
A) Periods
B) Series
C) Rows
D) Groups
5 / 40How many total Periods are there in the Modern Periodic Table?
A) \( 8 \)
B) \( 18 \)
C) \( 7 \)
D) \( 10 \)
6 / 40How many total Groups are there in the Modern Periodic Table?
A) \( 18 \)
B) \( 7 \)
C) \( 8 \)
D) \( 10 \)
7 / 40Which block of elements contains Alkali and Alkaline Earth metals?
A) \( p \)-block
B) \( d \)-block
C) \( f \)-block
D) \( s \)-block
8 / 40Which group of elements is famously known as "Halogens"?
A) Group 16
B) Group 18
C) Group 1
D) Group 17
9 / 40Which group of elements is known as "Noble Gases" or "Inert Gases"?
A) Group 17
B) Group 2
C) Group 1
D) Group 18
10 / 40Elements in Group 1 are collectively known as:
A) Alkaline Earth Metals
B) Halogens
C) Chalcogens
D) Alkali Metals
11 / 40The general outer electronic configuration of \( s \)-block elements is:
A) \( ns^{1-2} \)
B) \( ns^2 np^6 \)
C) \( ns^2 np^{1-6} \)
D) \( (n-1)d^{1-10} ns^{1-2} \)
12 / 40The elements belonging to the \( d \)-block are commonly known as:
A) Normal elements
B) Transition elements
C) Inner-transition elements
D) Representative elements
13 / 40The elements belonging to the \( f \)-block are known as:
A) Transition elements
B) Inert elements
C) Metalloids
D) Inner-transition elements
14 / 40Generally, the atomic radius across a period (left to right):
A) Increases
B) Decreases
C) Remains constant
D) First increases then decreases
15 / 40Generally, the atomic radius down a group (top to bottom):
A) Decreases
B) Remains constant
C) Becomes zero
D) Increases
16 / 40Which of the following is the most electronegative element in the periodic table?
A) Chlorine \( (Cl) \)
B) Fluorine \( (F) \)
C) Oxygen \( (O) \)
D) Nitrogen \( (N) \)
17 / 40Which element has the highest negative electron gain enthalpy?
A) Fluorine \( (F) \)
B) Oxygen \( (O) \)
C) Chlorine \( (Cl) \)
D) Bromine \( (Br) \)
18 / 40The energy required to remove the most loosely bound electron from an isolated gaseous atom is called:
A) Electronegativity
B) Ionization Enthalpy
C) Electron Gain Enthalpy
D) Kinetic Energy
19 / 40Ionization enthalpy generally increases as we move:
A) Down a group
B) Left to right across a period
C) Right to left across a period
D) Randomly
20 / 40Which of the following species is isoelectronic with \( Na^+ \)?
A) \( Mg^{2+} \)
B) \( Al^{3+} \)
C) \( Ne \)
D) All of the above
21 / 40The IUPAC official name for the element with atomic number 101 is:
A) Mendelevium
B) Unnilunium
C) Nobelium
D) Fermium
22 / 40The size of a Cation (positive ion) is always ___ than its parent atom.
A) Larger
B) Smaller
C) Equal
D) Unpredictable
23 / 40The size of an Anion (negative ion) is always ___ than its parent atom.
A) Smaller
B) Equal
C) Larger
D) Half
24 / 40The property of an atom to attract shared pair of electrons towards itself in a bond is called:
A) Ionization Energy
B) Electron Affinity
C) Electronegativity
D) Valency
25 / 40Which period is the shortest period in the Modern Periodic Table?
A) Period 2
B) Period 6
C) Period 7
D) Period 1
26 / 40Elements with atomic numbers 58 to 71 (Lanthanoids) belong to which block?
A) \( d \)-block
B) \( f \)-block
C) \( p \)-block
D) \( s \)-block
27 / 40Which of the following elements has the largest atomic radius?
A) \( Li \)
B) \( Na \)
C) \( K \)
D) \( Rb \)
28 / 40Which of the following elements has the smallest atomic radius?
A) \( O \)
B) \( N \)
C) \( F \)
D) \( C \)
29 / 40Metallic character generally ___ as we go down a group.
A) Decreases
B) Increases
C) Remains same
D) Vanishes
30 / 40Non-metallic character generally ___ as we go from left to right in a period.
A) Decreases
B) Increases
C) Remains constant
D) Becomes zero
31 / 40Which of the following oxides is amphoteric in nature?
A) \( Na_2O \)
B) \( MgO \)
C) \( Al_2O_3 \)
D) \( SO_2 \)
32 / 40The IUPAC symbol for the element with atomic number 104 is:
A) Unq
B) Uuq
C) Unn
D) Unu
33 / 40Isoelectronic species have the same number of:
A) Protons
B) Neutrons
C) Electrons
D) Nucleons
34 / 40Which group of elements shows the highest ionization enthalpy in their respective periods?
A) Alkali Metals
B) Halogens
C) Noble Gases
D) Alkaline Earth Metals
35 / 40Screening effect (or shielding effect) generally causes the Ionization Energy to:
A) Increase
B) Decrease
C) Remain unaffected
D) Become infinite
36 / 40Which of the following has the smallest ionic radius?
A) \( Mg^{2+} \)
B) \( Na^+ \)
C) \( F^- \)
D) \( Al^{3+} \)
37 / 40The general electronic configuration of the \( p \)-block elements is:
A) \( ns^2 np^{1-6} \)
B) \( ns^2 np^6 \)
C) \( ns^1 np^5 \)
D) \( (n-1)d^{10} ns^2 \)
38 / 40The element with atomic number \( Z = 35 \) belongs to which block?
A) \( s \)-block
B) \( d \)-block
C) \( p \)-block
D) \( f \)-block
39 / 40In the modern periodic table, periodicity is due to the repetition of:
A) Atomic mass
B) Valence shell electronic configuration
C) Number of neutrons
D) Number of isotopes
40 / 40Which element is a metalloid (semi-metal)?
A) Sodium \( (Na) \)
B) Silicon \( (Si) \)
C) Chlorine \( (Cl) \)
D) Neon \( (Ne) \)
Test Analysis

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