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MCQ's Test For ECAT Chemistry Chapter 6 Chemical Bonding
Try The MCQ's Test For ECAT Chemistry Chapter 6 Chemical Bonding
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 6 Chemical Bonding
00:00
Question # 1
The driving force for making a bond is
Question # 2
XeF4has shape of
Question # 3
The force which holds the atoms together to form a compound is called
Question # 4
In OF2, number of bond pairs and Ione paris of electrons are respectively
Question # 5
H-bonding is not present in
Question # 6
In a group the atomic size increase downward due to
Question # 7
Covalent compounds are soluble in
Question # 8
The most suitable method of the separation of a mixture of ortho and para-nitrophenol mixed in the ratio of 1: 1 is
Question # 9
The electron affinity of chlorine may be represented by the equation
Question # 10
In which of the following theories the hybridizationis considered
Question # 11
Which of the following phenomena will occur when two atoms of the elements having same spin of electron approach for bonding?
Question # 12
Which is made by coordinate covalent bond
Question # 13
Antibonding MO is formed by
Question # 14
On the basis of VSEPR theory SO2is a
Question # 15
The shape of methanol, ammonia and water molecule can be explained by assuming
Question # 16
The bond order O2molecule is
Question # 17
Which of the hydrogen halides has the highest percentage of ionic character
Question # 18
Ca, Mg, Be, Ba, belong to the same group, the order of their ionization energy values is
Question # 19
According to MO Theory, the species O2+ possesses
Question # 20
If two lone pairs are present then bond angle of tetrahedral compound reduces to ______ degrees
Question # 21
From the difference between expected bond energies for the normal covalent bond and experimentally determined values Pauling calculated the values of
Question # 22
Which of the following has highest bond order
Question # 23
The formation of compounds like PF5, BCI3, SF6indicates that
Question # 24
Which of the following geometry is associated with the compound in which the central atom assumes sp3d hybridization?
Question # 25
When of the following is isolelectronic with krypton
Question # 26
Generally electron affinities for elements in a period from left to right
Question # 27
The Electro-negatively difference for ionic bond must be greater than
Question # 28
Among the alkaline earth metals the element forming predominantly covalent compounds is
Question # 29
Three sp2hybrid are co-planar at an angle of
Question # 30
Water H2O is liquid while hydrogen sulphide H2S is a gas beause
Top Scorers Of ECAT Chemistry Chapter 6 Chemical Bonding MCQ`s Test
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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 | One of the following bonds is polar but compound is non-polar |
A. H2O
B. NH3
C. HCl
D. CO2
|
| 2 | Which of the following molecules has a net dipole moments |
A. CO2
B. CS2
C. SO2
D. CCI4
|
| 3 | 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
|
| 4 | Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals? |
A. O2
B. N2
C. Br2
D. F2
|
| 5 | During the formation of a chemical bond the potential energy of the system |
A. Decreases
B. Increases
C. Does not change
D. None of these
|
| 6 | Which of the hydrogen halides has the highest percentage of ionic character |
A. HCl
B. HBr
C. HF
D. HI
|
| 7 | Which of the following has zero depole-moment? |
A. CIF
B. PCl3
C. SiF4
D. CFCl4
|
| 8 | Which of the following has highest bond order |
A.
B.
C.
D.
|
| 9 | Which of the following phenomena will occur when two atoms of the elements having same spin of electron approach for bonding? |
A. Orbital overlap will not occur
B. Bonding will not occur
C. Both (A) and (B) are correct
D. None of the above are correct
|
| 10 | The structure of ICI2is |
A. Trigonal
B. Trigonal bipyramidal
C. Octahedral
D. Square planar
|
| 11 | The number of antibonding electron pairs in O2-molecular ion on the basis of MOT is |
A. 4
B. 3
C. 2
D. 5
|
| 12 | The bond order in No is 2.5 while that in NO+is 3.Which of the following statements is true for these two species? |
A. Bond length in NO+is greater than in NO
B. Bond length in unpredictable
C. Bond length in NO+is equal to that in NO
D. Bond length in NO is greater than in NO+
|
| 13 | The equation for the first ionization energy of hydrogen is |
A.
B.
C.
D.
|
| 14 | When of the following is isolelectronic with krypton |
A. Ca++
B. Al+++
C. Br-1
D. I-1
|
| 15 | Which of the following charge |
A. Li
B. Be
C. H
D. He
|
| 16 | The degree of polarity of molecule is known as its |
A. Dipole moment
B. Moment arm
C. Bond energy
D. Ionic character
|
| 17 | Electronegativity values of the elements F, CI and Br vary |
A. F > CI > Br
B. Br > CI > F
C. Cl > Br > F
D. CI > F > Br
|
| 18 | Maximum hydrogen bonds in water are |
A. 4
B. 3
C. 2
D. 8
|
| 19 | Number of sigma bonds in P4O10is |
A. 6
B. 7
C. 17
D. 16
|
| 20 | The number of electron pairs shared in carbon tetrachloride molecule is |
A. 2
B. 3
C. 4
D. 1
|
| 21 | Which of the following has unchanged valency? |
A. H
B. Na
C. Fe
D. Oxygen
|
| 22 | Which of the following molecules have sp3hybridized carbon |
A. CH4
B. C2H4
C. C2H2
D. CO2
|
| 23 | The bond angle H - O - H in ice ins closest to |
A. 120° , 28'
B. 60°
C. 90°
D. 109°
|
| 24 | Outer shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be |
A. XY
B. X2Y
C. X2Y3
D. XY2
|
| 25 | 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
|
| 26 | Which one of these is weakest? |
A. Ionest bond
B. Covalent bond
C. Metallic bond
D. Van der Waal's forces
|
| 27 | In sp2hybridization bond angle is _____ |
A. 120°
B. 180°
C. 109.5°
D. None
|
| 28 | According to VSEPR theory, the shape of the water molecule is |
A. Octahedral
B. Distorted tetrahedral
C. Planar triangle
D. Linear
|
| 29 | An ionic compound M2S3is formed by the metal M,, the metal is |
A. Ca
B. Ba
C. K
D. Al
|
| 30 | N-atom forms three covalent bonds, its electronic configuration is |
A.
B.
C.
D.
|
Test Questions
