Chemical Periodicity Test 1

Total Questions:50 Total Time: 75 Min

Remaining:

 

Questions 1 of 50

Question:All the s–block elements of the periodic table are placed in the groups …

Answers Choices:

IA and IIA

IIIA and IVA

B sub groups

VA to VIIA

Questions 2 of 50

Question:The electronic configuration of halogen is

Answers Choices:

\(n{s^2}n{p^6}\)

\(n{s^2}n{p^3}\)

\(n{s^2}n{p^5}\)

\(n{s^2}\)

Questions 3 of 50

Question:On moving from left to right across a period in the table the metallic character

Answers Choices:

Increases

Decreases

Remains constant

First increases and then decreases

Questions 4 of 50

Question:An element with atomic number 20 will be placed in which period of the periodic table

Answers Choices:

4

3

2

1

Questions 5 of 50

Question:The elements in which s and p-orbitals are present

Answers Choices:

Common elements

Inert gases

Halogens

Transitional elements

Questions 6 of 50

Question:Aluminium is diagonally related to (in periodic table)

Answers Choices:

Li

C

B

Be

Questions 7 of 50

Question:Elements after atomic number 103 have been discovered till now. If an element with atomic number 106 were ever discovered which of the following electronic configuration will it possess

Answers Choices:

\([Rn]\,5{f^{14}}\,6{d^4}\,7{s^2}\)

\([Rn]\,5{f^{14}}\,6{d^5}7{s^1}\)

\([Rn]\,5{f^{14}}\,6{d^6}\,7{s^0}\)

\([Rn]\,5{f^{14}}\,6{d^1}\,7{s^2}\,7{p^3}\)

Questions 8 of 50

Question:The element X, Y, Z and T have the indicated electronic configurations. Starting with the innermost shell, which is the most metallic element

Answers Choices:

\(X = 2,\,8,\,4\)

\(Y = 2,\,8,\,8\)

\(Z = 2,\,8,\,8,\,1\)

\(T = 2,\,8,\,8,\,7\)

Questions 9 of 50

Question:The most predominantly ionic compounds will be obtained from the combination of elements belonging to

Answers Choices:

1 and 7 groups

2 and 6 groups

3 and 5 groups

0 and 7 groups

Questions 10 of 50

Question:An atom with atomic number 21 belongs to the category of

Answers Choices:

\(s\)-block elements

\(p\)-block elements

\(d\)-block elements

\(f\)-block elements

Questions 11 of 50

Question:Lithium shows diagonal relationship with

Answers Choices:

Al

Mg

Be

B

Questions 12 of 50

Question:\(1{s^2}2{s^2}2{p^6}3{s^2}\) is the electronic configuration of the metal

Answers Choices:

\(Na\)

\(Mg\)

\(Fe\)

\(Al\)

Questions 13 of 50

Question:Which of the following is a normal element

Answers Choices:

Ce

He

Li

Ar

Questions 14 of 50

Question:Which of the following is metalloid

Answers Choices:

\(Pb\)

\(Zn\)

\(As\)

None of these

Questions 15 of 50

Question:Whose name is not associated with the development of Periodic Table

Answers Choices:

Prout’s

Newlands

Rutherford

Loother Meyer

Questions 16 of 50

Question:Element of atomic number 23 is placed in the periodic table in

Answers Choices:

s – block

p – block

d – block

f - block

Questions 17 of 50

Question:The ratio between radii of \(H{e^ + }\) ion and H atom is

Answers Choices:

\(\frac{1}{2}\)

1

\(\frac{3}{2}\)

2

Questions 18 of 50

Question:The smallest among the following ions is

Answers Choices:

\(N{a^ + }\)

\(M{g^{ + 2}}\)

\(B{a^{2 + }}\)

\(A{l^{3 + }}\)

Questions 19 of 50

Question:Which one is the correct order of the size of the iodine species

Answers Choices:

\(I > {I^ + } > {I^ - }\)

\(I > {I^ - } > {I^ + }\)

\({I^ + } > {I^ - } > I\)

\({I^ - } > I > {I^ + }\)

Questions 20 of 50

Question:Which one has larger radius

Answers Choices:

\(N{a^ + }\)

\(F\)

\({F^ - }\)

\(Na\)

Questions 21 of 50

Question:Of the following the ion with the smallest ionic radius is

Answers Choices:

\({K^ + }\)

\(C{a^{2 + }}\)

\(T{i^{3 + }}\)

\(T{i^{4 + }}\)

Questions 22 of 50

Question:Which of the following does not represent the correct order of the property indicated

Answers Choices:

\(S{c^{3 + }} > C{r^{3 + }} > F{e^{3 + }} > M{n^{3 + }}\) ionic radii

\(Sc < Ti < Cr < Mn\) Density

\(M{n^{2 + }} > N{i^{2 + }} < C{o^{2 + }} < F{e^{2 + }}\) ionic radii

\(FeO < CaO > MnO > CuO\) Basic nature

Questions 23 of 50

Question:The decreasing order of size of isoelectronic series \({K^ + },\,C{a^{2 + }},\,C{l^ - }\) and \({S^{2 - }}\) is

Answers Choices:

\({K^ + } > C{a^{2 + }} > {S^{2 - }} > C{l^ - }\)

\({K^ + } > C{a^{2 + }} > C{l^ - } > {S^{2 - }}\)

\(C{a^{2 + }} > {K^ + } > C{l^ - } > {S^{2 - }}\)

\({S^{2 - }} > C{l^ - } > {K^ + } > C{a^{2 + }}\)

Questions 24 of 50

Question:Which of the following sets of elements have the strongest tendency to form anions

Answers Choices:

N, O, F

P, S, Cl

As, Se, Br

Sb, Te, I

Questions 25 of 50

Question:Which of the following has smallest size

Answers Choices:

\(M{g^{2 + }}\)

\(N{a^ + }\)

\(A{l^{3 + }}\)

\(S{i^{4 + }}\)

Questions 26 of 50

Question:Which one of the following is expected to have largest size

Answers Choices:

\({F^ - }\)

\({O^{ - 2}}\)

\(A{l^{ + 3}}\)

\({N^{ - 3}}\)

Questions 27 of 50

Question:The ionization energy of nitrogen is more than that of oxygen because

Answers Choices:

Nitrogen has half filled p-orbitals

Nitrogen is left to the oxygen in the same period of the periodic table

Nitrogen contains less number of electrons

Nitrogen is less electronegative

Questions 28 of 50

Question:The energy required to remove an electron of a gaseous atom from its ground state is called

Answers Choices:

Potential energy

Ionization energy

Electrode potential

Activation energy

Questions 29 of 50

Question:Which of the following element has the lowest ionization potential

Answers Choices:

Fe

H

Li

He

Questions 30 of 50

Question:As one moves along a given row in the periodic table, ionization energy

Answers Choices:

Remains same

Increases from left to right

First increases, then decreases

Decreases from left to right

Questions 31 of 50

Question:The set representing the correct order of first ionisation potential is

Answers Choices:

\(K > Na > Li\)

\(Be > Mg > Ca\)

\(B > C > N\)

\(Ge > Si > C\)

Questions 32 of 50

Question:Among the following options, the sequence of increasing first ionisation potential will be

Answers Choices:

\(B < C < N\)

\(B > C > N\)

\(C < B < N\)

\(N > C > B\)

Questions 33 of 50

Question:Ionisation energy in group I-A varies in the decreasing order as

Answers Choices:

\(Li > Na > K > Cs\)

\(Na > Li > K > Cs\)

\(Li > Cs > K > Na\)

\(K > Cs > Na > Li\)

Questions 34 of 50

Question:Which of the following relation is correct with respect to first (I) and second (II) ionization potentials of sodium and magnesium

Answers Choices:

\({I_{Mg}} = I{I_{Na}}\)

\({I_{Na}} > {I_{Mg}}\)

\(I{I_{Mg}} > I{I_{Na}}\)

\(I{I_{Na}} > I{I_{Mg}}\)

Questions 35 of 50

Question:Which has maximum first ionization potential

Answers Choices:

C

N

B

O

Questions 36 of 50

Question:Which one of the following elements has the highest ionisation energy

Answers Choices:

Na

Mg

C

F

Questions 37 of 50

Question:Electron affinity depends on

Answers Choices:

Atomic size

Nuclear charge

Atomic number

Atomic size and nuclear charge both

Questions 38 of 50

Question:Increasing order of electron affinity is

Answers Choices:

\(N < O < Cl < Al\)

\(O < N < Al < Cl\)

\(Al < N < O < Cl\)

\(Cl < N < O < Al\)

Questions 39 of 50

Question:The amount of energy which is released due to addition of extra electron to the outermost orbit of gaseous atom is called

Answers Choices:

Electron capacity

Electron affinity

Ionisation potential

Electronegativity

Questions 40 of 50

Question:Which of the following species has the highest electron affinity

Answers Choices:

\(F\)

\(O\)

\({O^ - }\)

\(N{a^ + }\)

Questions 41 of 50

Question:Two elements whose electronegativities are 1.2 and 3.0 the bond formed between them would be

Answers Choices:

Ionic

Covalent

Coordinate

Metallic

Questions 42 of 50

Question:The solubilities of carbonates decreases down the magnesium group due to a decrease in

Answers Choices:

Lattice energies of solids

Hydration energies of cations

Inter-ionic attraction

Entropy of solution formation

Questions 43 of 50

Question:Electronegativity is a measure of the capacity of an atom to

Answers Choices:

Attract electrons

Attract protons

Repel electrons

Repel protons

Questions 44 of 50

Question:With increasing atomic number in a certain period

Answers Choices:

The chemical reactivity decreases

The chemical reactivity increases

The electropositive character increases

The electronegative character increases

Questions 45 of 50

Question:Which shows variable valency

Answers Choices:

s - block elements

p - block elements

d - block elements

Radioactive elements

Questions 46 of 50

Question:Most reducing agent is

Answers Choices:

K

Mg

Al

Ba

Questions 47 of 50

Question:Which of the following oxides is most basic

Answers Choices:

\(N{a_2}O\)

\(A{l_2}{O_3}\)

\(Si{O_2}\)

\(S{O_2}\)

Questions 48 of 50

Question:In the periodic table, the metallic character of elements

Answers Choices:

Decreases from left to right across a period and on descending a group

Decreases from left to right across a period and increases on descending a group

Increases from left to right across a period and on descending a group

Increases from left to right across a period and decreases on descending a group

Questions 49 of 50

Question:The correct order of the increasing ionic character is

Answers Choices:

\(BeC{l_2} < MgC{l_2} < CaC{l_2} < BaC{l_2}\)

\(BeC{l_2} < MgC{l_2} < BaC{l_2} > CaC{l_2}\)

\(BeC{l_2} < BaC{l_2} < MgC{l_2} < CaC{l_2}\)

\(BaC{l_2} < CaC{l_2} < MgC{l_2} < BeC{l_2}\)

Questions 50 of 50

Question:Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in

Answers Choices:

Forming covalent halides

Forming polymeric hydrides

Exhibiting maximum covalency in compounds

Exhibiting amphoteric nature in their oxides