ECAT Pre Engineering Chemistry Chapter 6 MCQ Test With Answer

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

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M Umer Arain 03 - Nov - 2024 00 Min 04 Sec 100/120
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Sr.#	Question	Answer
1	Two H-atom combine to form a strong H₂molecule due to	A. Increase in potential energy B. Decrease in potential energy C. Energy remains unchanged D. Distance is increased
2	An ionic compound M₂S₃is formed by the metal M,, the metal is	A. Ca B. Ba C. K D. Al
3	Coordinate covalent bond is present in the molecules	A. H₂O B. BF₃ C. SiO₂ D. SO₂
4	The degree of polarity of molecule is known as its	A. Dipole moment B. Moment arm C. Bond energy D. Ionic character
5	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
6	The shape of CIO^-₃according to valence shell electron pair repulsion theory will be	A. Planar triangle B. Pyramidal C. Tetrahedral D. Square planar
7	Molecular orbital picture of N₂indicates	A. One unpaired electron B. Two unpaired electron C. No unpaired electron D. None of these
8	Which of the following has highest bond order
9	One of the following bonds is polar but compound is non-polar	A. H₂O B. NH₃ C. HCl D. CO₂
10	The geometry of 4 sp³hybrid orbitals on an atom is	A. Square planar B. Tetrahedral C. Trigonal planar D. Linear
11	The shape of methanol, ammonia and water molecule can be explained by assuming	A. Sp³hybridization B. Sp²hybridization C. Sp hybridization D. All of these
12	The number of antibonding electron pairs in O^2-molecular ion on the basis of MOT is	A. 4 B. 3 C. 2 D. 5
13	The structure of ICI₂is	A. Trigonal B. Trigonal bipyramidal C. Octahedral D. Square planar
14		A. The ionization energy of A is high and electron affinity of B is low B. The ionization energy of A is low and electron affinity of B is high C. Both the ionization energy of A and electron off affinity of B are high D. Both the ionization energy of A and electron affinity of B are low
15	SnCI₂have ______ shape	A. Planner B. Tetrahedral C. Angular D. None
16	The electron affinity of chlorine may be represented by the equation
17	From the difference between expected bond energies for the normal covalent bond and experimentally determined values Pauling calculated the values of	A. Ionization potential of elements B. Electron affinity of elements C. Electronegativity of elements D. Bond length
18	The boiling point of heavy water is	A. 108°C B. 101.4°C C. 99°C D. 110°C
19	Which of the hydrogen halides has the highest percentage of ionic character	A. HCl B. HBr C. HF D. HI
20	Which of the following molecules has a net dipole moments	A. CO₂ B. CS₂ C. SO₂ D. CCI₄
21	When two hydrogen atoms approach to form a chemical bond	A. The repulsive forces dominate the attractive forces B. The attractive forces, dominate the repulsive forces C. The energy of atoms increases D. The two atoms start ionization
22	Which of the following molecules have multiple bonds	A. CH₄ B. C₂H₄ C. C₂H₆ D. CCI₄
23	When of the following is isolelectronic with krypton	A. Ca⁺⁺ B. Al⁺⁺⁺ C. Br^-1 D. I^-1
24	The covalent bonds are	A. Unidirectional B. Bi-directional C. Non-directional D. Multi-directional
25	Antibonding MO is formed by	A. Addition of atomic orbitals B. Substraction of atomic orbitals C. Multiplication of atomic orbitals D. None of these
26	H-bonding is not present in	A. Glycerine B. Water C. Hydrogen sulphide D. Hydrogen fluride
27	In a group the atomic size increase downward due to	A. Addition of electronic shells B. Increase in the proton number C. Repulsion of electrons D. All of the above
28	Shielding effect intervening electrons causes	A. Decreases in atomic radii in a period from right to left B. Increase in atomic radii in a period from left to righ t C. Decrease in atomic radii down the group D. Increase in atomic radii down the group
29	The three N - Hσ-bonds are made by	A. sp³- s overlap B. sp²- s overlap C. P - p overlap D. sp - overlap
30	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

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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

Number of sigma bonds in P4O10is

The equation for the first ionization energy of hydrogen is

Atoms obey octet rule by sharing-electrons making covalent bonds according to

Which of the following geometry is associated with the compound in which the central atom assumes sp3d hybridization?

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

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

The driving force for making a bond is

The Electro-negatively difference for ionic bond must be greater than

The bond angle H - O - H in ice ins closest to

A bond between two atoms may be obtained by sharing of electrons such a bond is called

Which of the following molecules has a net dipole moments

Which of the following is a polar molecules

The nature of interparticle forces in benzene is

If two lone pairs are present then bond angle of tetrahedral compound reduces to ______ degrees

The structure of ICI2is

On the basis of VSEPR theory SO2is a

Which of the following molecules have its central atom sp2hybridized

The shape of CIO-3according to valence shell electron pair repulsion theory will be

H-bonding is not present in

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

The degree of polarity of molecule is known as its

Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?

Among the alkaline earth metals the element forming predominantly covalent compounds is

The number of bonds in nitrogen molecule is

In which of the following theories the hybridizationis considered

XeF4has shape of

Which of the following has highest bond order

Shielding effect intervening electrons causes

The most suitable method of the separation of a mixture of ortho and para-nitrophenol mixed in the ratio of 1: 1 is

Which of the following species is paramagnetic?

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Number of sigma bonds in P₄O₁₀is

Which of the following geometry is associated with the compound in which the central atom assumes sp³d hybridization?

The structure of ICI₂is

On the basis of VSEPR theory SO₂is a

Which of the following molecules have its central atom sp²hybridized

The shape of CIO^-₃according to valence shell electron pair repulsion theory will be

XeF₄has shape of