Correct the following :-
a) A substance may either be homogeneous or heterogeneous.
b) Antoine Lavoisier used the term “ element “ for the first time in 1661.
c) The rust is a hydrated oxide of copper.
d) Liquid Petroleum Gas , used in cooking , is stored in cylinders.
e) (NH4)
+
ion is tetravalent.
f) Sodium chloride solution reacts with Lead nitrate solution to form a precipitate of AgCl.
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Answer:
heterogeneous.
b) Antoine Lavoisier used the term “ element “ for the first time in 1661.
c) The rust is a hydrated oxide of copper.
d) Liquid Petroleum Gas , used in cooking , is stored in cylinders.
e) (NH4)
+
ion is tetravalent.
f) Sodium chloride solution reacts with Lead nitrate solution to form a precipitate