WorksheetsLanguage of chemistry
Total questions: 25
Worksheet time: 13mins
He coined first time the term Symbol of an element
John Dalton
Avogadro
Berzelius
Aristotle
The element cobalt is represented by following
CO
Co
Cob
COB
The atom or group of atom carrying either positive or negative charges are commonly known as
Cation
Anion
Valency
Radicals
Sodium ion is iso electronic to One of the following atom
Argon
Neon
Magnesium ion
None of above
The oxy acid amongst the following is
Hydrochloric acid
Hydrosulphuric acid
Sulphuric acid
None of above
The alkali amongst the following is
Sodium hydroxide
Calcium hydroxide
Ferrous hydroxide
Copper hydroxide
A chemical equation does not provide information about
Reactants
Products
Volumes of reactants and products
Rates of chemical reaction
Following statement is true for alkali
Only water soluble bases are called as alkali
All bases are alkali
All Alkalies are bases
All water insoluble bases are alkali
The chemical name of the compound Na2S2O3
Sodium thiosulphate
Sodium sulphate
Sodiumdisulphidetrisulphide
Disodiumsulphideoxide
The corrected formula of potassium dichromate is
K2CrO7
K2Cr2O7
KCrO7
KCrO
The charge present on phosphate radical is
-3
-4
-2
-5
The compound represented by formula is Ba(NO2)2
Barium nitrate
Barium nitrite
Barium nitiride
Barium nitrooxide
The reaction of magnesium in presence of air results in the formation of
White coloured solid
Yellow coloured solid
A white solid which is yellow when hot
None of above
The formula of aluminium carbide is
Al4C3
Al3C4
AlC
Al2C3
The chemical name of K4[Fe(CN)6] is
Potassium ferrocyanide
Potassium ferricyanide
Potassium ferroferric cyanide
None of above
The chemical name of Mg3N2 is
Magnesium dinitiride
Trimagnesium nitride
Magnesium nitride
Trimagnesium nitrogen
The chemical formula of sodium argentocyanide is
Na[Ag(CN)2
NaAgCN
NAg(CN)2
NAAG(CN)2
The radical C2O4-2 is
Oxalate ion
Oxy ion
Oxo ion
Oxalic acid ion
The valency of phosphorous in PCl3 and PCl5 is
3 & 5
5 & 3
5 only
3 only
The symbolic representation a molecule of a compound is known as
Chemical formula
Chemical equation
Radical
Chemical name
Amongst the following ,the elements possessing more than one valency
Iron
Sodium
Manganese
Barium
The unbalanced chemical equation is also known as
Skeletal equation
Skeleton equation
Chemical equation
None of above
The balanced chemical equation is based on
law of definite proportion
Law of multiple proportion
Law of conservation
Law firm gravitation
Double headed arrows in chemical reactions indicate
Irreversible Reaction
Reversible Reaction
Balanced chemical equation
Skeleton equation
The formula of calcium silicate is
CaSiO3
Ca2SiO3
Ca3SiO2
None of above
