9th Chemistry
Chapter
1:-
Fundamentals Of Chemistry
1.1 Topic 4:-
Compound & Mixture
MCQ’s.
1. Which
of the following can be separated by physical means?
(Grw_ 18-GII)
(A) mixture
(B) compound
(C) radical
(D) element
Ans:- (A)
mixture
Short Q’s.
1. Write
down chemical formula of calcium phosphate and sodium chloride.
(Grw_ 19-GI)
Ans:- Calcium Phosphate Ca3(PO4)2.
Sodium Chloride (Common Salt) NaCl.
2. Write
down chemical formula of the following;
(a) Sugar (b) Sulphuric Acid
(Grw_ 19-GII)
Ans:- Sugar C12H22O11.
Sulphuric Acid H2SO4.
3.
Differentiate between homogeneous and heterogeneous mixtures.
(Grw_ 18-GI, 18-GII)
Ans:- Mixtures that have
uniform composition throughout are called homogeneous mixtures e.g. air,
gasoline, ice cream. Whereas, heterogeneous mixtures are those in which
composition is not uniform throughout e.g. soil, rock and wood.
Long Q’s.
1. List
five characteristics by which compounds can be distinguished from mixtures.
(Grw_ 17-GI)
0 Comments: