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A network covalent solid is made up of atoms that are linked together by a network of covalent bonds (pairs of electrons shared between atoms of identical electronegativity), and as a result can be thought of as a single, massive molecule in its own right. Diamond is the most well-known example, but there are others, such as silicon quartz, and graphite.
- The solid Ar’s atoms are bound together by
A)Forces van der Waals
(B)Hydrogen atoms Hydrogen atoms
(C) Structural ionic bonds
D) Forces hydrophobic
the answer is a
explanation: van der Waals forces, which are relatively weak electric forces that draw neutral molecules together in gases, liquefied and solidified gases, and nearly all organic liquids and solids.
- Which of the following bonds is the weakest?
(A)Ice
B)The diamond
C) KCl
d.) Neon
the answer is a
explanation:- Ice is water that has been frozen into a solid state, usually at or below 0 degrees Celsius or 32 degrees Fahrenheit.
- Which of the following bonds is the most brittle?
A)Structural connections between atoms
(B)Metallic connections
C) Bonds that are covalent
D) Forces of Van der Waals
the answer is d
explanation:- : van der Waals forces, which are relatively weak electric forces that draw neutral molecules together in gases, liquefied and solidified gases, and nearly all organic liquids and solids.
- Which of the following substances contains both covalent and ionic bonds?
(A)Sodium hydroxide
B)KCl
C) CH4
d.) SO2
the answer is a
explanation:-NaOH is a caustic white crystalline substance that easily absorbs moisture until it dissolves. Sodium hydroxide, sometimes known as caustic soda or lye, is the most extensively used industrial alkali. It is extremely corrosive to both animal and plant tissue.
- Covalent molecules are held together in a crystal by
A)Attraction between dipoles
(B)Hydrogen atoms Hydrogen atoms
C) Attraction of Van der Waals
D) Attraction electrostatic
the answer is c
explanation: Van der Waals forces are a class of intermolecular forces that include attraction and repulsion between atoms, molecules, and surfaces. They are distinct from covalent and ionic bonding in that they are caused by correlations in neighbouring particles’ fluctuating polarizations (a consequence of quantum dynamics).
- Which chemical exhibits the most lattice energy?
A)CsF
B)KW
C) RbF
D) HF
the answer is d
explanation:- Hydrofluoric acid is a hydrogen fluoride solution in water. HF solutions are colourless, very acidic, and corrosive. It is used to synthesise the majority of fluorine-containing chemicals, including the widely prescribed antidepressant medicine fluoxetine and the material PTFE.
- Metallic connections lack
(A)Bonds with a high degree of directionality
(B)Valence electrons that are mobile
C) Electrons that have lost their locality
(D) Coupling of valence orbitals
The answer is a
Explanation: When considering the geometric configurations of atoms in compounds, a clear separation between ionic and covalent connections exists. In essence, ionic bonding is a one-way street, whereas covalent bonding is a two-way street.
- The formation of a chemical bond results in the formation of
(A)Enhancement of energy
(B)Energy deficiency
(C) Neither
(D) None of the preceding
The answer is b
Explanation:- After subtracting the calories (energy) you expend during exercise, your energy availability is the quantity of energy you have available to fuel your body’s requirements. Having an energy deficiency or low energy availability means that you do not have enough calories (energy) to meet your body’s requirements as well as to engage in exercise.
- Which of the following compounds has small discrete molecules?
A)Copper
B)CO
C) Powdered ice
D) Graphite
the answer is c
- Ionic crystals are held together by their particles.
A)Nuclear weapons
B)Electrons
C) Bonds that are covalent
D) Electrostatic interactions
the answer is d
explanation:- Electrostatic interactions are the interactions between charged molecules that are either attractive or repulsive in nature. In the majority of cases, electrostatic interactions are used in conjunction with other interactions to heal damaged materials.
- Which of the following is not a good illustration of a hydrogen bonding relationship?
A)H20
B)HCl
C) NH3
D) CHCl3
the answer is b
explanation: There is no hydrogen bond in liquid HCl due to the fact that the bond breaks off when dissolved in water, as explained in the answer.
- If a bond is composed of a high number of organic compounds, the bond is referred to as?
A)The ionic bonding
B)Metallic bond
C) covalent bond
D) Dipolar bond (also known as dipolar bonding)
the answer is C
explanation: It’s because they have a strong tendency to transport electrons, which is why they’re correct.
- Determine whether the following statement is true or false: “Ionic bonds are nondirectional.”
True or false?
A) True
B) False
the answer is A
Explanation: When dissolved in water, the ionic link is broken, allowing the charged particles to travel freely.
- Which of the following formations is not an example of a covalent bond ?
A) LiF
B) NH3
C) CF4
D) HF
the answer is A
Explanation: In this case, the production of LiF (Lithium Fluoride) takes occur via electron transfer rather than by sharing, making it an example of an Ionic bond.
- The following is not a property of the Ionic bond: 2. Which of the following is not a property of the Ionic bond?
A)electron loss;
B)electron gain;
C) electron sharing;
D) electron transfer.
the answer is C
Explanation: The formation of an ionic connection is caused by the loss, transfer, and gain of electrons. The transmission of electrons, on the other hand, is a feature of a covalent bond.
- Which of the following chemical bonds was first described by Kossel and Lewis and is still in use today?
A) The connection between metals
B) Covalent bond with polarity
C) Coordinate bond with polarity
D) the ionic and covalent bond
the answer is D
