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WorksheetsLanguage of Chemistry
Total questions: 12
Worksheet time: 17mins
The valency of sulphate ion is
1
2
-1
-2
Aluminium is an element in the periodic table that always exists as a diatomic molecule
True
False
I dont know
will let you know
Balance the following equation: C3H8 + O2 --> CO2+ H2O
1,2,3,4
1,3,5,4
1,5,3,4
1,4,5.3
valency of lead in plumbous oxide is (a)
As per the rules for naming a compound, a compound ending with "ite" will contain __________ oxygen atoms
1
2
3
4
The prefix "hypo" is added to the name of a compound if it has 1 oxygen less than the compounds ending in ----------
ite
ate
thio
per
variable valency is exhibited by the following atoms
copper, iron, sodium, magnesium, lead, zinc
copper, iron, lead, tin, mercury, arsenic
copper, iron, lead, tin, sodium, magnesium
copper, iron, tin, sodium, aluminium
FeCl3 + xNaOH → Fe(OH)3 + 3NaCl what is x?
2
1
3
4
4Al + 3O2 → xAl2O3 what is X?
1
2
3
4
Reduction is _________ of electrons
loss
gain
sharing
mutual distribution
out of sodium sulphide and sodium sulphate which one contains oxygen in the molecule
sodium sulphide
sodium sulphate
none of them
both of them
Which of the following reactions is not balanced ?
a. 2NaHCO3⟶Na2CO3+H2O+CO2
b. 2C4H10+12O2⟶8CO2+10H2O
c. 2Al+6H2O⟶2Al(OH)3+3H2
d. 4NH3+5O2⟶4NO+6H2O
a, b and c
only c
only b
a and c
