Practice Chemical Bonding Molecular Structure Multiple Choice Questions with Answers Quiz-1

Q.1.

Covalent compounds

Share electrons
transfer electrons
contain a sea of electrons
conduct electricity

Q.2.

Which of the following statement is wrong?

The combining atomic orbitals must have same or nearly same energies
The extent of overlapping betwen the atomic orbitals of the two atoms shold be large
The combining atomic orbitals must have different energies
The combinig atomic orbitals must have the same symmetry

Q.3.

What is a valence electron?

an electron that is found in the outermost shell of an atom.
an electron found in the innermost shell of an atom.
an electron found in the middle shell.

Q.4.

What are isoelectronic species?

same number of electrons
same number of neutrons
same number of protons
All the above

Q.5.

Which of the following has the highest boiling point?

HCl
CH3CH2CH2CH3
CCl4
NaCl

Q.6.

What is the electron configuration of sodium?

2.8
2.8.2
2.8.1
11

Q.7.

In which of the following substances will hydrogen bond be strongest?

HC
H2O
HI
H2S

Q.8.

Ionic Bonding involves...

The transfer of protons
The transfer of nuetrons
The transfer of electrons
None Of the above

Q.9.

Does CH4 have hydrogen bonding?

yes
no

Q.10.

A valid Lewis structure of _______ cannot be drawn without violating the octet rule.

NF3
IF3
PF3
SbF3

Q.11.

What is the VSEPR shape for CO2?

Linear
Trigonal planar
Bent
Trigonal pyramidal

Q.12.

Which of the following is ionic?

NO2
MgO
CO
CH4

Q.13.

What is the electron configuration of beryllium?

2.2
2.4
4
6

Q.14.

Which element will have 5 electrons in its Lewis dot symbol?

Bromine
Nitrogen
Neon
Boron

Q.15.

Why do atoms bond?

They typically don't bond
To add or take away energy levels
To have a full valence shell.
To have a full inner shell

Q.16.

Write the singly bonded Lewis dot structure for BFWhich of the following statements best describes this structure?

It obeys the octet rule on all atoms.
It has less than an octet on at least one atom.
It has a lone pair of electrons on the boron atom.
It has less than an octet of electrons on all atoms.

Q.17.

In which of the following species is the underlined carbon having Sp3 hybridisation?

CH3COOH
CH3CH2OH
CH3COCH3
CH2=CHCH3

Q.18.

What is the name of the compound NO?

nitrogen dioxide
nitrogen monoxide
dinitrogen trioxide

Q.19.

What is the basis of a metallic bond?

the attraction of neutral metal atoms.
the attraction between protons and neutrons.
the attraction between positive metal ions and interlocking electrons.
the attraction between positive metal ions and sea of delocalised electrons.

Q.20.

Do ionic bonds share or transfer electrons?

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