IB myp 4-5 Chemistry – Practice Questions- All Topics
Topic :Bonding-Chemical Formulas
Topic :Bonding- Weightage : 21 %
All Questions for Topic :structure and bonding,properties,chemical formulas,chemical reactions and the conservation of mass; balancing,equations, the mole concept and chemical calculations;
reaction kinetics [rates, and factors affecting rates/collision theory],equilibria/reversible reactions,energy changes in reactions, endo- and exothermicity; combustion of fuels)
Question:
For each of the following pairs of elements, deduce the formula and name.
a) Sodium and fluorine
b) Lithium and oxygen
c) Potassium and nitrogen
d) Calcium and chlorine
e) Magnesium and sulfur
f) Strontium and phosphorus
g) Aluminium and bromine
h) Aluminium and oxygen
i) Aluminium and nitrogen
▶️Answer/Explanation
Ans: a) sodium fluoride, NaF
b) lithium oxide, Li2O
c) potassium nitride, K3N
d) calcium chloride, CaCl2
e) magnesium sulfide, MgS
f) strontium phosphide, Sr3P2
g) aluminium bromide, AlBr3
h) aluminium oxide, Al2O3
i) aluminium nitride, AlN
Question:
For each of the following pairs of elements, deduce the formula and name.
a) Iron(III) and nitrate ion
b) Vanadium(III) and sulfate ion
c) Manganese(VI) and oxide ion (Hint: ionic compounds are the lowest whole number ratio)
d) Copper(I) and carbonate ion
e) Copper(II) and sulfate ion
f) Ammonium ion and nitrite ion
g) Ammonium ion and sulfite ion
h) Nickel(IV) and oxide ion
i) Manganese(VII) and sulfate ion
j) Titanium(II) and hydrogencarbonate ion
▶️Answer/Explanation
Ans: a) iron(III) nitrate, Fe(NO3)3
b) vanadium(III) sulfate, V2(SO4)3
c) manganese(VI) oxide, MnO3
d) copper(I) carbonate, Cu2CO3
e) copper(II) sulfate, CuSO4
f) ammonium nitrite, NH4NO2
g) ammonium sulfite, (NH4)2SO3
h) nickel(IV) oxide, NiO2
i) manganese(VII) sulfate, Mn2(SO4)7
j) titanium(II) hydrogen carbonate, Ti(HCO3)2