#1
What is the chemical formula for water?
H2O
ExplanationWater'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-
ExplanationThe prefix 'Tri-' indicates three atoms in a covalent compound.
#3
Which of the following is a diatomic molecule?
N2
ExplanationN2 is a diatomic molecule, consisting of two nitrogen atoms.
#4
What is the molecular formula of methane?
CH4
ExplanationThe molecular formula of methane is CH4.
#5
What is the name of the compound with the formula NH3?
Ammonia
ExplanationThe compound with the formula NH3 is named Ammonia.
#6
What is the name of the covalent compound with the formula CO2?
Carbon dioxide
ExplanationThe 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
ExplanationIn N2O5, oxygen has the higher oxidation state.
#8
What is the name of the compound with the formula N2O?
Nitrous oxide
ExplanationThe compound with the formula N2O is named Nitrous oxide.
#9
In the compound SF6, what is the oxidation state of sulfur?
+6
ExplanationThe 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
ExplanationThe molecular geometry of a molecule with a trigonal bipyramidal electron domain geometry is also trigonal bipyramidal.
#11
What is the name of the compound with the formula P4S10?
Phosphorus pentasulfide
ExplanationThe compound with the formula P4S10 is named Phosphorus pentasulfide.
#12
What is the formula for phosphorus trichloride?
PCl3
ExplanationThe formula for phosphorus trichloride is PCl3.
#13
Which element is the central atom in the compound XeF4?
Xenon
ExplanationXenon is the central atom in the compound XeF4.
#14
What is the name of the compound with the formula SO2?
Sulfur dioxide
ExplanationThe compound with the formula SO2 is named Sulfur dioxide.
#15
How many sigma (σ) and pi (π) bonds are present in the molecule C2H4?
4 σ, 1 π
ExplanationThe molecule C2H4 has 4 sigma (σ) bonds and 1 pi (π) bond.