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WorksheetsLanguage of Chemistry and Chemical Changes
Total questions: 20
Worksheet time: 8mins
Name
Class
Date
1.
The trivial name for water is
a)
Hydrogen hydroxide
b)
Hydrogen peroxide
c)
Hydrogen oxide
d)
Di-hydrogen oxide
2.
Which of the following represents the formula of sodium hypochloride
a)
NaClO
b)
NaClO2
c)
NaClO3
d)
NaClO4
3.
Which of the following element does not show variable valency
a)
Sodium
b)
Gold
c)
Iron
d)
Tin
4.
The formula for meta aluminate radical is
a)
AlO2
b)
AlO
c)
Al2O3
d)
AlO3
5.
Which of the following is a tri-valent ion
a)
Nitrite
b)
Nitrate
c)
Bi-carbonate
d)
Nitride
6.
The chemical formula of Lead sulphate is
a)
Pb2SO4
b)
PbSO4
c)
Pb3SO4
d)
Pb(SO4)3
7.
The substance which increase the efficiency of a catalyst
a)
Effector
b)
Promotor
c)
Receptor
d)
Improver
8.
An oxide yellow when hot and white when cold
a)
Lead oxide
b)
Zinc oxide
c)
Magnesium oxide
d)
Potassium oxide
9.
A carbonate which do not decompose on heating
a)
Magnesium carbonate
b)
Zinc carbonate
c)
Potassium carbonate
d)
Calcium carbonate
10.
The green colour solid formed on heating ammonium dichromate
a)
Chromium sulphate
b)
Chromium nitrate
c)
Chromium oxide
d)
Chromium
11.
Formation of ammonia from its element is a
a)
Direct combination
b)
Neutralisation
c)
Precipitation
d)
Displacement
12.
The only product of neutralisation reaction are
a)
Salt and oxygen
b)
Salt and hydrogen
c)
Salt and water
d)
Hydrogen and oxygen
13.
The substance which increase or decrease the rate of chemical reaction
(a)
14.
The reddish brown gas which is formed on heating lead nitrate
(a)
15.
The empirical formula of Glucose is
(a)
16.
The chemical formula of ammonia is
(a)
17.
The metal which lies at the top of activity series
(a)
18.
The chemical reaction which takes place in the presence of electricity is called
(a)
19.
The chemical formula of caustic soda is
(a)
20.
The valency of carbon in CCl4
(a)
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