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Covalent compound naming conventions Quiz

#1

What is the chemical formula for water?

H2O
Explanation

Water's chemical formula is H2O, consisting of two hydrogen atoms and one oxygen atom.

#2

Which prefix indicates three atoms in a covalent compound?

Tri-
Explanation

The prefix 'Tri-' indicates three atoms in a covalent compound.

#3

Which of the following is a diatomic molecule?

N2
Explanation

N2 is a diatomic molecule, consisting of two nitrogen atoms.

#4

What is the molecular formula of methane?

CH4
Explanation

The molecular formula of methane is CH4.

#5

What is the name of the compound with the formula NH3?

Ammonia
Explanation

The compound with the formula NH3 is named Ammonia.

#6

What is the name of the covalent compound with the formula CO2?

Carbon dioxide
Explanation

The covalent compound with the formula CO2 is named Carbon dioxide.

#7

In the compound N2O5, what is the name of the non-metal with the higher oxidation state?

Oxygen
Explanation

In N2O5, oxygen has the higher oxidation state.

#8

What is the name of the compound with the formula N2O?

Nitrous oxide
Explanation

The compound with the formula N2O is named Nitrous oxide.

#9

In the compound SF6, what is the oxidation state of sulfur?

+6
Explanation

The oxidation state of sulfur in SF6 is +6.

#10

What is the molecular geometry of a molecule with a trigonal bipyramidal electron domain geometry?

Trigonal bipyramidal
Explanation

The molecular geometry of a molecule with a trigonal bipyramidal electron domain geometry is also trigonal bipyramidal.

#11

Which of the following compounds is a polar molecule?

H2O
Explanation

H2O is a polar molecule.

#12

Which of the following is a noble gas that can form compounds?

Xenon
Explanation

Xenon is a noble gas that can form compounds.

#13

How many lone pairs of electrons are present on the central atom in the molecule H2O?

2
Explanation

There are 2 lone pairs of electrons on the central atom in the molecule H2O.

#14

What is the molecular geometry of a molecule with four electron pairs around the central atom?

Tetrahedral
Explanation

The molecular geometry of a molecule with four electron pairs around the central atom is tetrahedral.

#15

What is the name of the compound with the formula P4S10?

Phosphorus pentasulfide
Explanation

The compound with the formula P4S10 is named Phosphorus pentasulfide.

#16

What is the formula for phosphorus trichloride?

PCl3
Explanation

The formula for phosphorus trichloride is PCl3.

#17

Which element is the central atom in the compound XeF4?

Xenon
Explanation

Xenon is the central atom in the compound XeF4.

#18

What is the name of the compound with the formula SO2?

Sulfur dioxide
Explanation

The compound with the formula SO2 is named Sulfur dioxide.

#19

How many sigma (σ) and pi (π) bonds are present in the molecule C2H4?

4 σ, 1 π
Explanation

The molecule C2H4 has 4 sigma (σ) bonds and 1 pi (π) bond.

#20

What is the hybridization of the central atom in the molecule PF5?

sp3d2
Explanation

The hybridization of the central atom in PF5 is sp3d2.

#21

What is the name of the compound with the formula Cl2O7?

Perchloric acid
Explanation

The compound with the formula Cl2O7 is named Perchloric acid.

#22

Which of the following molecules exhibits resonance?

NO2
Explanation

NO2 exhibits resonance.

#23

What is the electron geometry of a molecule with five electron pairs around the central atom?

Trigonal bipyramidal
Explanation

The electron geometry of a molecule with five electron pairs around the central atom is trigonal bipyramidal.

#24

Which of the following is an example of a nonpolar molecule?

CO2
Explanation

CO2 is an example of a nonpolar molecule.

#25

What is the name of the compound with the formula HNO3?

Nitric acid
Explanation

The compound with the formula HNO3 is named Nitric acid.

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