# 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 …

IA and IIA

IIIA and IVA

B sub groups

VA to VIIA

## Questions 2 of 50

Question:The electronic configuration of halogen is

$$n{s^2}n{p^6}$$

$$n{s^2}n{p^3}$$

$$n{s^2}n{p^5}$$

$$n{s^2}$$

## Questions 3 of 50

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

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

4

3

2

1

## Questions 5 of 50

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

Common elements

Inert gases

Halogens

Transitional elements

## Questions 6 of 50

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

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

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

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

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

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

## 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

$$X = 2,\,8,\,4$$

$$Y = 2,\,8,\,8$$

$$Z = 2,\,8,\,8,\,1$$

$$T = 2,\,8,\,8,\,7$$

## Questions 9 of 50

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

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

$$s$$-block elements

$$p$$-block elements

$$d$$-block elements

$$f$$-block elements

## Questions 11 of 50

Question:Lithium shows diagonal relationship with

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

$$Na$$

$$Mg$$

$$Fe$$

$$Al$$

## Questions 13 of 50

Question:Which of the following is a normal element

Ce

He

Li

Ar

## Questions 14 of 50

Question:Which of the following is metalloid

$$Pb$$

$$Zn$$

$$As$$

None of these

## Questions 15 of 50

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

Prout’s

Newlands

Rutherford

Loother Meyer

## Questions 16 of 50

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

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

$$\frac{1}{2}$$

1

$$\frac{3}{2}$$

2

## Questions 18 of 50

Question:The smallest among the following ions is

$$N{a^ + }$$

$$M{g^{ + 2}}$$

$$B{a^{2 + }}$$

$$A{l^{3 + }}$$

## Questions 19 of 50

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

$$I > {I^ + } > {I^ - }$$

$$I > {I^ - } > {I^ + }$$

$${I^ + } > {I^ - } > I$$

$${I^ - } > I > {I^ + }$$

## Questions 20 of 50

$$N{a^ + }$$

$$F$$

$${F^ - }$$

$$Na$$

## Questions 21 of 50

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

$${K^ + }$$

$$C{a^{2 + }}$$

$$T{i^{3 + }}$$

$$T{i^{4 + }}$$

## Questions 22 of 50

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

$$S{c^{3 + }} > C{r^{3 + }} > F{e^{3 + }} > M{n^{3 + }}$$ 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

$${K^ + } > C{a^{2 + }} > {S^{2 - }} > C{l^ - }$$

$${K^ + } > C{a^{2 + }} > C{l^ - } > {S^{2 - }}$$

$$C{a^{2 + }} > {K^ + } > C{l^ - } > {S^{2 - }}$$

$${S^{2 - }} > C{l^ - } > {K^ + } > C{a^{2 + }}$$

## Questions 24 of 50

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

N, O, F

P, S, Cl

As, Se, Br

Sb, Te, I

## Questions 25 of 50

Question:Which of the following has smallest size

$$M{g^{2 + }}$$

$$N{a^ + }$$

$$A{l^{3 + }}$$

$$S{i^{4 + }}$$

## Questions 26 of 50

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

$${F^ - }$$

$${O^{ - 2}}$$

$$A{l^{ + 3}}$$

$${N^{ - 3}}$$

## Questions 27 of 50

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

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

Potential energy

Ionization energy

Electrode potential

Activation energy

## Questions 29 of 50

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

Fe

H

Li

He

## Questions 30 of 50

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

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

$$K > Na > Li$$

$$Be > Mg > Ca$$

$$B > C > N$$

$$Ge > Si > C$$

## Questions 32 of 50

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

$$B < C < N$$

$$B > C > N$$

$$C < B < N$$

$$N > C > B$$

## Questions 33 of 50

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

$$Li > Na > K > Cs$$

$$Na > Li > K > Cs$$

$$Li > Cs > K > Na$$

$$K > Cs > Na > Li$$

## 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

$${I_{Mg}} = I{I_{Na}}$$

$${I_{Na}} > {I_{Mg}}$$

$$I{I_{Mg}} > I{I_{Na}}$$

$$I{I_{Na}} > I{I_{Mg}}$$

## Questions 35 of 50

Question:Which has maximum first ionization potential

C

N

B

O

## Questions 36 of 50

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

Na

Mg

C

F

## Questions 37 of 50

Question:Electron affinity depends on

Atomic size

Nuclear charge

Atomic number

Atomic size and nuclear charge both

## Questions 38 of 50

Question:Increasing order of electron affinity is

$$N < O < Cl < Al$$

$$O < N < Al < Cl$$

$$Al < N < O < Cl$$

$$Cl < N < O < Al$$

## 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

Electron capacity

Electron affinity

Ionisation potential

Electronegativity

## Questions 40 of 50

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

$$F$$

$$O$$

$${O^ - }$$

$$N{a^ + }$$

## Questions 41 of 50

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

Ionic

Covalent

Coordinate

Metallic

## Questions 42 of 50

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

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

Attract electrons

Attract protons

Repel electrons

Repel protons

## Questions 44 of 50

Question:With increasing atomic number in a certain period

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

s - block elements

p - block elements

d - block elements

## Questions 46 of 50

Question:Most reducing agent is

K

Mg

Al

Ba

## Questions 47 of 50

Question:Which of the following oxides is most basic

$$N{a_2}O$$

$$A{l_2}{O_3}$$

$$Si{O_2}$$

$$S{O_2}$$

## Questions 48 of 50

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

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

$$BeC{l_2} < MgC{l_2} < CaC{l_2} < BaC{l_2}$$

$$BeC{l_2} < MgC{l_2} < BaC{l_2} > CaC{l_2}$$

$$BeC{l_2} < BaC{l_2} < MgC{l_2} < CaC{l_2}$$

$$BaC{l_2} < CaC{l_2} < MgC{l_2} < BeC{l_2}$$

## Questions 50 of 50

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