Match the list I with List II and select the correct answer using. the code given below the lists.

List I		List II
A	A halogen	1	Cesium
B	An alkali metal	2	Germanium
C	A chalcogen	3	Iodine
D	A metalloid	4	Selenium

(a)

A	B	C	D
1	3	2	4

(b)

A	B	C	D
4	3	1	2

(c)

A	B	C	D
3	1	4	2

(d)

A	B	C	D
2	1	4	3

Period of an element is represented by _____ quantum number

(a)

Principal

(b)

Azimuthal

(c)

Magnetic

(d)

Spin

The first list of 23 chemical elements was published by _____ in the year 1789.

(a)

Berzelius

(b)

Dobereiner

(c)

Lavoisier

(d)

John Dalton

Match the list I with List II and select the correct answer using. the code given below the lists.

List I		List II
A	Chancourtois	1	Addition of synthetic elements
B	Rang	2	Families and periods Long form
C	Glenn Seaborg	3	Modem periodic law
D	Moseley	4	First periodic law

(a)

A	B	C	D
1	3	2	4

(b)

A	B	C	D
4	2	1	3

(c)

A	B	C	D
3	4	1	2

(d)

A	B	C	D
2	1	4	3

Which of the following statement (s) about the Modern Periodic Table is are incorrect
i. The elements in the Modern Periodic Table are arranged on the basis of their decreasing atomic number.
ii. The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic masses.
iii. Isotopes are placed in adjoining group (s) in the Periodic Table.
iv. The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number.

(a)

(i) only

(b)

(i), (ii) and (iii)

(c)

(i), (ii) and (iv)

(d)

(iv) only

Which of the following is Dobereiner's triad?

(a)

Ne,Ca,Na

(b)

H₂, N₂, O₂

(c)

Li, Na, K

(d)

Na, Br, K

The statement that is not correct for modern classification of element is
(1) The properties of elements are periodic function of these atomic numbers.
(2) The ionisation enthalpy of the elements generally increase with increase in atomic number
(3) For transition elements the 3d orbitals are filled after 3p-orbitals and befire 4s orbitals.
(4) Fifth period contain 18 elements.

(a)

1 and 2

(b)

2 and 3

(c)

4 only

(d)

3 only

What would be the formula of the compound formed by A and B, where A has the valence 3 and B has the valence 3?

(a)

AB

(b)

AB₃

(c)

A₃B

(d)

3AB₃

An element M combines with CI. What would be the formula of the compound obtained if M has a valence of 2?

(a)

MCI

(b)

MCl₂

(c)

M₂CI

(d)

M₂Cl₂

Law of triad was unable to explain for the element

(a)

Ca, Sr and Ba

(b)

Fe, Co, Ni

(c)

Li, Na, K

(d)

CI, Br, I

Law of octaves was proposed by _____

(a)

Lothar Meyer

(b)

Johann Dobereiner

(c)

Newland

(d)

Mendeleev

______ proposed modern periodic law.

(a)

Henry Moseley

(b)

Mendeleev

(c)

Newland

(d)

Dobrainer

The atomic weight of Au is ______

(a)

195

(b)

197

(c)

198

(d)

196

The horizontal rows in the periodic table are called as ______

(a)

group

(b)

family

(c)

period

(d)

column

Match the list I with list II and select the correct answer using the code given below the list.

List I		List II
A	de Chancourtois	1	Addition of synthetic elements.
B	Moseley	2	first periodic law
C	Newland	3	Modem periodic law
D	Glenn seaborg	4	Law of octaves

(a)

A	B	C	D
1	2	3	4

(b)

A	B	C	D
3	2	4	1

(c)

A	B	C	D
2	3	4	1

(d)

A	B	C	D
2	3	1	4

Consider the following statements according to modern periodic table.
(i) Modern periodic table contains 18 vertical columns and 7 horizontal rows.
(ii) The elements after uranium are called transuranium elements
(iii) The 17th group elements are called chalcogens
(iv) The elements of Groups 13 to 18 are called p-block elements.
which of the following statement(s) given above is/are correct.

(a)

(i), (iii) & (iv)

(b)

(i), (ii) & (iii)

(c)

(i), (ii) & (iv)

(d)

all the 4 statements

The vertical columns in the periodic table are called as ___________

(a)

family

(b)

group

(c)

period

(d)

both (a) and (c)

There are _____ periods in the periodic table.

(a)

18

(b)

7

(c)

6

(d)

5

The number of groups in the periodic table ___________

(a)

7

(b)

18

(c)

5

(d)

6

The element with atomic number 57 belongs to _____

(a)

s-block

(b)

p-block

(c)

d-block

(d)

f-block

Lithium shows diagonal relationship with _____

(a)

Mg

(b)

Al

(c)

Na

(d)

Si

The electronic configuration of nitrogen is _____

(a)

Is²2s²2p³

(b)

Is²2s² 2P_x¹2p_y¹2P₂¹

(c)

Is²2s¹2p⁴

(d)

both (a) and (b)

The first transition series is from _____ to _____

(a)

Sc to Zn

(b)

Hf to Hg

(c)

Y to Cd

(d)

Ac to Lr

The element with Z = 24 is placed in the _____ period

(a)

5

(b)

2

(c)

3

(d)

4

______ is the lightest metal known.

(a)

Na

(b)

Li

(c)

Mg

(d)

Al

He is placed in ______ group.

(a)

1

(b)

2

(c)

17

(d)

18

Pd has exceptional electronic configuration of 4d¹⁰ 5s⁰ It belongs to period ______ and group _____

(a)

4, 11

(b)

5, 10

(c)

6, 9

(d)

3, 16

The elements at the extreme left of periodic table has strong behaviour ______

(a)

Oxidizing

(b)

Reducing

(c)

both oxidisation and reducing

(d)

electro negative

On moving diagonally across the periodic table, the second and third period elements show certain similarities. Pick out the pair which shows such a property.

(a)

Be & Na

(b)

Be & AI

(c)

Be & Mg

(d)

B & AI

d-block elements form ____ compounds.

(a)

ionic

(b)

covalent

(c)

Coordinate

(d)

both (a) and (b)

X, Y and Z are three members of a Doboreiner's triad. If the atomic mass of X is 7 and that of Z is 39, what in the atomic mass of Y?

(a)

23

(b)

7

(c)

46

(d)

39

Modern periodic law is ____________

(a)

The physical and chemical properties of the elements are periodic functions of their atomic numbers.

(b)

The physical and chemical properties of the elements depend upon the energy of the electrons.

(c)

The physical and chemical properties of the elements depend upon atomic weight.

(d)

None of these

Elements which generally exhibit multiple oxidation states and whose ions are usually coloured are ___________

(a)

metalliods

(b)

transition elements

(c)

non-metals

(d)

gases

The elements eka aluminum and eka silicon named by Mendeleev known today as ___________

(a)

gallium and germanium

(b)

germanium and silicon

(c)

aluminium and silicon

(d)

indium and thallium

Find the incorrect statement.

(a)

Smallest atom of periodic table is He

(b)

p-block elements are metals, nonmetals and metalloids

(c)

Noble gases have 8 valence electrons except He

(d)

Valence electron and valency is same for group I

Valence electrons in the atom of element A is 4 and in the element B is 2. Most probable compound fc from A and B is

(a)

AB₃

(b)

AB₂

(c)

A₂B₃

(d)

A₂B

Which of the following set has atomic numbers of only representative elements?

(a)

2,10,17,35

(b)

2,12,22,32

(c)

3,15,35,45

(d)

4,20,36,79

Halogens belong to the _____________

(a)

s-block

(b)

p-block

(c)

d-block

(d)

Zero group of the periodic table

Characteristic of transition elements is incomplete ____________

(a)

d-orbitals

(b)

f-orbitals

(c)

p-orbitals

(d)

s-orbitals

In the first transition series the incoming electron enters the ____________

(a)

4d-orbital

(b)

3d-orbital

(c)

5d-orbital

(d)

6d-orbital

The number of elements in the first period of the modern periodic table is _____

(a)

2

(b)

8

(c)

18

(d)

32

Group 16 of the periodic table is called as ____

(a)

oxygen family

(b)

chalcogen family

(c)

both a and b

(d)

halogen family

The metal which is a liquid at room temperature is _______

(a)

Gallium

(b)

Mercury

(c)

Germanium

(d)

Tellurium

Representative elements are those which belong to ____________

(a)

s and d-blocks

(b)

s and p-blocks

(c)

p and d-blocks

(d)

d and f-blocks

The element with atomic number 103 is ______

(a)

lawrencium

(b)

Mendelevium

(c)

fermium

(d)

nobelium

Match the list I with List II and select the correct answer using. the code given below the lists.

List I		List II
A	Metalloid	1	Cerium
B	Noble gas	2	Nobelium
C	Trans uranium element	3	Arsenic
D	Lanthanide	4	Argon

(a)

A	B	C	D
1	3	2	4

(b)

A	B	C	D
4	2	1	3

(c)

A	B	C	D
3	4	2	1

(d)

A	B	C	D
2	1	4	3

Elements whose atoms have their sand p-sub-levels complete are the _____

(a)

Normal elements

(b)

Transition elements

(c)

Halogens

(d)

Inert gases

Excluding hydrogen and helium, the smallest element in the periodic table is _____

(a)

Lithium

(b)

Oxygen

(c)

Fluorine

(d)

Chlorine

Match the list I with list II and select the correct answer using the code given below the list.

List I		List II
A	Unnilbium	1	Bohrium
B	Unnil hexium	2	Ronigenium
C	unnnunium	3	scaborgium
D	Unnilsepluim	4	Nobelium

(a)

A	B	C	D
1	2	4	3

(b)

A	B	C	D
3	1	4	2

(c)

A	B	C	D
4	3	2	1

(d)

A	B	C	D
4	3	1	2

The general electronic configuration of s-block element is ______

(a)

ns¹

(b)

ns²

(c)

ns¹ and ns²

(d)

ns^1-2

The p-block elements comprise of group ____________

(a)

1,2

(b)

13 to 18

(c)

3 to 12

(d)

12 to 18

The general electronic configuration of p-block element is _____

(a)

ns^1-2

(b)

np^1-6

(c)

np⁶

(d)

ns² np⁶

The general electronic configuration of d-block element is _____

(a)

ns²np⁶

(b)

(n-1) d^1-10 ns^0-2

(c)

(n-1) d¹ ns^0-2

(d)

(n-1) d^0-10 ns²

d-block elements form _____ compounds.

(a)

ionic

(b)

covalent

(c)

metallic

(d)

both (a) and (b)

The elements in which extra electrons enters into (n - 2) f-orbitals are called ____ elements.

(a)

p-block

(b)

d-block

(c)

f-block

(d)

s-block

The element with atomic number 31 belongs to _____

(a)

s-block

(b)

p-block

(c)

d-block

(d)

f-block

The oxidation state of alkali metal is _______

(a)

+2

(b)

+1

(c)

+3

(d)

0

All the elements in a group in the periodic table have the same ____________

(a)

electronic configuration

(b)

number of electrons in the valence shell

(c)

atomic number

(d)

atomic weight

Which pair of elements has the same characteristic chemical properties?

(a)

Z = 13, Z = 22

(b)

Z = 2, Z =4

(c)

Z = 4, Z = 24

(d)

Z = 3, Z = 11

The IUPAC name of element having atomic number 108 is ____________

(a)

Unniloctium

(b)

Ununoctium

(c)

Nilniloctium

(d)

Ununoctinium

Pick the metalloid among the following elements ____________

(a)

P

(b)

S

(c)

Si

(d)

Al

Which one among the following exhibits a valency greater than 4?

(a)

Na

(b)

P

(c)

H

(d)

Ar

Which one among the following species has the largest atomic radius?

(a)

Na

(b)

Mg

(c)

AI

(d)

Si

The correct order of size among Br, Br⁺, Br^- is __________

(a)

Br < Br⁺ < Br^-

(b)

Br⁺ < Br < Br^-

(c)

Br < Br^- < Br⁺

(d)

Br^- < Br⁺ < Br^-

The elements having highest ionization energies within their periods are called _____

(a)

Halogens

(b)

Noble gases

(c)

Alkali metals

(d)

Transition elements

Arrange the following ions in order of decreasing ionic radius He, Li²⁺, Be³⁺

(a)

He > Li²⁺ > Be³⁺

(b)

Li²⁺ > Be³⁺ > He

(c)

He > Li²⁺ > Be³⁺

(d)

Be³⁺ > Li²⁺ > He

Across the period, Ionisation energy _______

(a)

increases

(b)

decreases

(c)

does not vary

(d)

first decreases and then increases

Which among the following has the highest ionisation energy _______________

(a)

Ne

(b)

Na

(c)

K

(d)

Kr

Which of the following statements are correct?
(i) Helium has the highest first ionisation enthalpy
(ii) Chlorine has less electron affinity than fluorine
(iii) Ne has more ionisation energy than Boron.
(iv) The ionisation energy noble gases of zero

(a)

(i), (ii) and (iii)

(b)

(i) and (iii)

(c)

(i), (iii) and (iv)

(d)

(i), (ii), (iii) and (iv)

Which of the following factor decreases across the period?

(a)

Ionisation energy

(b)

electron affinity

(c)

atomic radius

(d)

electronegativity

Match the list I with list II and select the correct answer using the code given below the list.

List I		List II
A	Ionisation energy	1	ionic compound
B	electro negativity	2	alloys
C	s-block elements	3	KJ mol-1
D	d-block elements	4	No unit

(a)

A	B	C	D
1	2	3	4

(b)

A	B	C	D
3	2	1	4

(c)

A	B	C	D
2	3	1	4

(d)

A	B	C	D
3	4	1	2

The most electronegative element of the periodic table is _______

(a)

Iodine

(b)

Flourine

(c)

Chlorine

(d)

Oxygen

With respect to chlorine, hydrogen will be __________

(a)

Electropositive

(b)

Electronegative

(c)

Neutral

(d)

None of these

"The relative tendency of a bonded atom in a molecule to attract the shared pair of electrons towards itself" is termed as_____

(a)

electron gain enthalpy

(b)

electronegativity

(c)

electron affinity

(d)

ionisation energy

Which of the following property has no unit?

(a)

ionisation energy

(b)

electronegativity

(c)

electron affinity

(d)

atomic radius

Among the elements given below,_____ has the highest value of electro negativity.

(a)

Li

(b)

Ne

(c)

F

(d)

Be

In a group with decrease in electronegativity the metallic character
(a) decreases across a period
(b) increases down the group
(c) does not vary
Which of the above statement(s) is true

(a)

a only

(b)

b only

(c)

both (a) and (b)

(d)

(c) only

Which of the following processes involves absorption of energy?

(a)

Cl_(g) +e^- ⟶ Cl^-

(b)

O^-_(g) +e^- ⟶ O^2-

(c)

O_(g) +e^- ⟶ O_(g)^-

(d)

S_(g)+e^- ⟶ S^-_(g)

Which set of elements shows positive electron gain enthalpy?

(a)

He,N,O

(b)

Ne,N,Cl

(c)

O,Cl,F

(d)

N,He,Ne

Which of the following has the highest positive electron gain enthalpy?

(a)

F

(b)

O^-

(c)

Na+

(d)

Mg²⁺

Match the list I with List II and select the correct answer using. the code given below the lists.

List I	List II
A.Element with first highest ionization enthalpy	1.Fluorine
B.Element with second highest ionization enthalpy	2.Chlorine
C.Element with highest  electron gain enthalpy	3.Sodium
D.Element with highest electronegativity	4.Neon

(a)

A	B	C	D
1	3	2	4

(b)

A	B	C	D
4	3	2	1

(c)

A	B	C	D
3	1	4	2

(d)

A	B	C	D
2	1	4	3

Ionisation enthalpy is an _____ process.

(a)

exothermic

(b)

endothermic

(c)

reversible

(d)

both (a) and (b)

The effective nuclear charge across the period (from left to right)

(a)

Decreases

(b)

Increases

(c)

First decreases and then increases

(d)

First increases and then decreases

Which of the following N^3-, O^2-, F^- is largest in size?

(a)

N^3-

(b)

O^2-

(c)

F^-

(d)

All of these

The radii of F, F^-, O and O^2- are in the order

(a)

O^2- > O> F^- > F

(b)

F^- > O^2- > F > 0

(c)

O2^- > F^- > O > F

(d)

O2 > F^- > F> O

Which of the following atom has the lowest ionization enthalpy?

(a)

1s² 2s² 2p³

(b)

1s² 2s² 2p⁶ 3s¹

(c)

Is² 2s² 2p⁶

(d)

Is² 2s² 2p⁵

Which of the following statement is incorrect?

(a)

The ionization potential of nitrogen is greater than that of oxygen

(b)

The electron affinity of F is greater than that of Cl.

(c)

The ionization potential of Mg is greater than aluminium.

(d)

The electronegativity of F is greater than that of Cl.

Correct order of 1st ionization potential among elements Be, B, C, N, O is ___________

(a)

B < Be < C< O < N

(b)

B < Be < C< N < O

(c)

Be < B < C< N < O

(d)

Be < B < C< O < N

Ionic radii are ____________

(a)

Inversely proportional to effective nuclear charge

(b)

Inversely proportional to square of effective nuclear charge

(c)

Directly proportional effective nuclear charge

(d)

Directly proportional to square of effective nuclear charge.

Which of the following sets contain only isoelectionic ions?

(a)

Zn²⁺, Ca²⁺, Ga³⁺, Al³⁺

(b)

K⁺, Ca²⁺, Sc³⁺, Cl^-

(c)

P^3-, S^2-, Cl^-, Al³⁺

(d)

Ti⁴⁺, Ar, Cr³⁺, V⁵⁺

Which orbital diagram gives an insight to the highest ionization energy?

(a)

(b)

(c)

(d)

Pick the incorrect statement about the factors affecting ionization energy

(a)

More is the shielding of valence electrons more is the ionization energy

(b)

Ionization enthalpy ∝ effective nuclear charge

(c)

Half filled or full filled atomic orbitals have high ionization energy

(d)

Larger is the atomic radii lower is ionization energy

Element with atomic number 56 belongs to which block _________

(a)

s

(b)

p

(c)

d

(d)

f

Gadolinium belong to 4f series. Its atomic number is 64. Which of the following is the correct electronic configuration of gadolinium?

(a)

[Xe]4f⁹5s¹

(b)

[Xe]4f⁷5d¹6s²

(c)

[Xe]4f⁶5d²6s²

(d)

[Xe]4f⁸d²

The number of d- electrons in Fe⁺² (Z = 26) is not equal to the number of electrons in which one of the following?

(a)

d-electron in Fe (Z = 26)

(b)

p-electron in Ne (Z = 10)

(c)

s-electron in Mg (Z = 12)

(d)

p-electron in CI (Z = 17)

Among the elements Ca, Mg, P and CI the order of increasing atomic radii is ___________

(a)

Mg < Ca < Cl < P

(b)

Cl < P < Mg < Ca

(c)

p < Cl < Ca < Mg

(d)

Ca < mg < P < Cl

The ionic radii (in A) of N^-3, 0^-2 and P- are respectively _________

(a)

1.71, 1.40 and 1.36

(b)

1.71, 1.36 and 1.40

(c)

1.36, 1.40 and 1.71

(d)

1.36, 1.71 and 1.40

Among the following which one has highest cation to anion ratio?

(a)

CsI

(b)

CsF

(c)

LiF

(d)

NaF

The ionisation potential of Na is 5.48 eV. The ionisation potential of K will be __________

(a)

tho same as Na

(b)

4.34 eV

(c)

5.68 eV

(d)

10.88 eV

The first ionisation potential (in eV) of Be and B respectively are ____________

(a)

8.29,9.32

(b)

9.32, 8.29

(c)

9.32, 9.32

(d)

8.29, 8.29