ECAT Pre Engineering Chemistry Chapter 6 MCQ Test With Answer

Top Scorers Of ECAT Chemistry Chapter 6 Chemical Bonding MCQ`s Test

T

Tanzeel Ur Rehman 28 - May - 2024 04 Min 11 Sec 115/120
A

Abdullah Zubair 20 - Dec - 2024 04 Min 30 Sec 115/120
M

M Umer Arain 03 - Nov - 2024 00 Min 04 Sec 100/120
M

Manar Abbas 01 - Jun - 2024 04 Min 15 Sec 85/120
S

Sania Iqbal 14 - May - 2024 06 Min 15 Sec 80/120
M

Mirza Sibgha 27 - Jul - 2024 10 Min 11 Sec 80/120
G

GOVT. SUFFA EDUCATION CENTER GIRLS MURIDKE 29 - May - 2024 13 Min 02 Sec 80/120
F

Faisal Mehar 30 - May - 2024 16 Min 02 Sec 80/120
Z

zakee 09u 30 - Nov - 2024 17 Min 43 Sec 80/120
M

Maryam Fatima 18 - Mar - 2024 04 Min 46 Sec 75/120
N

Noor Fatima 14 - Nov - 2024 06 Min 24 Sec 75/120
N

Nayab Shahzad 08 - May - 2024 11 Min 21 Sec 70/120
M

Muntasir Khokhar 21 - May - 2024 05 Min 39 Sec 65/120
N

Naheed Yasir 26 - May - 2024 13 Min 03 Sec 65/120
S

Shahid Baloxh 11 - May - 2024 14 Min 20 Sec 65/120

Sr.#	Question	Answer
1	Ionic radius, in a period from left to right	A. Increases B. Decreases C. Decreases then increases D. Increases and decreases
2	If two lone pairs are present then bond angle of tetrahedral compound reduces to ______ degrees	A. 109.5° B. 107.5° C. 104.5° D. None
3	The degree of polarity of molecule is known as its	A. Dipole moment B. Moment arm C. Bond energy D. Ionic character
4	Water H₂O is liquid while hydrogen sulphide H₂S is a gas beause	A. Water has higher molecular weight B. Hydrogen sulphide is a weak acid C. Sulphure has high electronegativity than oxyhe D. Water molecules associate through hydrogen bonding
5	Which of the following species has unpaired electrons in antibonding molecular orbitals	A. B. C. D.
6	According to VSEPR theory, the shape of the water molecule is	A. Octahedral B. Distorted tetrahedral C. Planar triangle D. Linear
7	One of the following bonds is polar but compound is non-polar	A. H₂O B. NH₃ C. HCl D. CO₂
8	Which of the following statements is not correct regarding bonding molecular orbitals?	A. Bonding molecular orbitals possess less energy than atomic orbitals from which they are formed B. Bonding molecular orbitals have low electron density between the two nuclei C. Every electron in the bonding molecular orbitals contributes to the attraction between atoms D. Bonding molecular orbitals are formed when the electron waves undergo constructive interference
9	Elements have the tendency to attain 8 electrons in their valence shell. This is known as	A. Octer rule B. Hunds rule C. Pauli exclusion principle D. Auf ban principle
10	Generally the bond formed by metals with non-metals is	A. Ionic B. Covalent C. Polar D. Non- polar
11	Ionization energies increase from left to right along the period due to	A. Increase in nuclear charge B. Repulsion of electron increases C. Repulsion of protons increase D. Atomic size increase along the period
12	Which of the following has highest bond order	A. B. C. D.
13	A bond between two atoms may be obtained by sharing of electrons such a bond is called	A. An ionic bond B. A coordinate bond C. A dative bond D. A covalent bond
14	Which of the following is a polar molecules	A. Carbon dioxide B. Carbon tetrachloride C. Methanol D. Ethane
15	An ionic compound M₂S₃is formed by the metal M,, the metal is	A. Ca B. Ba C. K D. Al
16	B-atom in BF₃has	A. sp³hybridization B. sp²hybridization C. sp hybridization D. no hybridization
17	The three N - Hσ-bonds are made by	A. sp³- s overlap B. sp²- s overlap C. P - p overlap D. sp - overlap
18	Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?	A. O₂ B. N₂ C. Br₂ D. F₂
19	Which one of these is weakest?	A. Ionest bond B. Covalent bond C. Metallic bond D. Van der Waal's forces
20	In sp²hybridization bond angle is _____	A. 120° B. 180° C. 109.5° D. None
21	The geometry of 4 sp³hybrid orbitals on an atom is	A. Square planar B. Tetrahedral C. Trigonal planar D. Linear
22	Mg becomes isoelectronic with neon when it	A. Loses two electrons B. Gains two electrons C. Loses 1 electron D. Gains 1 electron
23	When elements of group I react with the elements of group VIA theory form	A. Ionic bond B. Covalent bond C. Polar bond D. None
24	The bond order O₂molecule is	A. 1 B. 2 C. 3 D. Zero
25	Which of the following geometry is associated with the compound in which the central atom assumes sp³d hybridization?	A. Planar B. Pyramidal C. Angular D. Trigonal bipyramidal
26	Antibonding MO is formed by	A. Addition of atomic orbitals B. Substraction of atomic orbitals C. Multiplication of atomic orbitals D. None of these
27	The nature of interparticle forces in benzene is	A. Dipole-dipole interaction B. Dispersion force C. Ion-dipole interaction D. H-bonding
28		A. 154 pm B. 133 pm C. 120 pm D. 150 pm
29	SnCI₂have ______ shape	A. Planner B. Tetrahedral C. Angular D. None
30	Generally ionization energy of atoms decreases by	A. Decreases in atomic size B. Increase in atomic size C. Increase in nuclear charge D. None of these

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

ECAT Pre Engineering Chemistry Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 6 Chemical Bonding

ECAT Chemistry Chapter 6 Chemical Bonding

When two hydrogen atoms approach to form a chemical bond

The electron affinity of chlorine may be represented by the equation

Outer shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be

In which of the following theories the hybridizationis considered

Which for the following has no dipole moment

The bond order O2molecule is

The number of electron pairs shared in carbon tetrachloride molecule is

Which of the following has highest bond order

The three N - Hσ-bonds are made by

When elements of group I react with the elements of group VIA theory form

Nitrogen in NH3is sp3hybridized but the bond angle in NH3is 107° and not 109.5° due to

Which of the following species has unpaired electrons in antibonding molecular orbitals

Two H-atom combine to form a strong H2molecule due to

The number of bonds in nitrogen molecule is

On the basis of VSEPR theory SO2is a

Inter molecular forces in solid hydrogen are

Generally electron affinities for elements in a period from left to right

Which carbon is more electronegative?

Atomic number of Al is 13. When it forms ionic bond with oxygen the number of electrons lost by 1 Al atom is

The atomic radius of hydrogen is 37

A molecule in which sp2hybrid orbitals are used by the central atom in forming covalent bonds in

During the formation of a chemical bond the potential energy of the system

According to MO Theory, the species O2+ possesses

The overlapping of two partially filled atomic orbital is in such a way that the probability of finding the electron pair is maximum along the axis joining the two nuclei, the bond is

Number of sigma bonds in P4O10is

Maximum hydrogen bonds in water are

Which of the following species is paramagnetic?

Which of the following molecules has a net dipole moments

An ionic compound M2S3is formed by the metal M,, the metal is

N-atom forms three covalent bonds, its electronic configuration is

Prepare Complete Set Wise ECAT Chemistry Chapter 6 Chemical Bonding MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Top Scorers Of ECAT Chemistry Chapter 6 Chemical Bonding MCQ`s Test

Test Questions

Is this page helpful?

The bond order O₂molecule is

Nitrogen in NH₃is sp³hybridized but the bond angle in NH₃is 107° and not 109.5° due to

Two H-atom combine to form a strong H₂molecule due to

On the basis of VSEPR theory SO₂is a

A molecule in which sp²hybrid orbitals are used by the central atom in forming covalent bonds in

According to MO Theory, the species O₂+ possesses

Number of sigma bonds in P₄O₁₀is

An ionic compound M₂S₃is formed by the metal M,, the metal is