Question

by weight
e compo
the pe
2. The constituents of water cannot be separated by physical means
such as filtration, boiling, etc.
3. When 1 part of hydrogen by weight is burnt with s parts of
ongen by weight to form water, a large amount of heat energy is
liberated.
4. The properties of water are entirely different from the properties
of its constituents. For example, hydrogen is a gas which burns
whereas oxygen is a gas which helps in burning. However, water
is a liquid which extinguishes fire.
pound
ns.
EXERCISE 2.2
a com
B.
OBJECTIVE TYPE QUESTIONS
Fill in the blank spaces by choosing the
correct words from the list given below:
List : homogeneous, compound, heterogeneous.
mixture. water
1. A mixture in which its constituents
are not distributed evenly is called a
mixture.
2. A common salt solution is a
mixture.
3. Ferrous sulphide is a
of iron
and sulphur.
is a compound of hydrogen
and oxygen.
5. The constituents of a
retain their individual chemical and physical
properties.
Statements given below are incorrect. Write
correct statements :
1. A powerful magnet separates iron from the
compound iron sulphide.
2. Air is a compound of mainly oxygen and
nitrogen gas.
Sugar solution is an example of a hetero-
geneous mixture.
4. Milk is a pure substance.
5. In a mixture of iron and sulphur, the
particles of iron can be removed by
dissolving sulphur in water.
ce
3 nu
C. Match the statements in Column A, with those in Column B.
Column A
Column B
1. A homogeneous material which contains particles of one kind and has definite (a) Homogeneous mixture
properties.
2. Two or more substances are mixed together in any proportions, such that (b) Heterogeneous mixture
they do not undergo any chemical change.
3. A mixture whose contents are mixed uniformly.
(c) Alloy
4. A homogeneous mixture of molten metals.
(d) Pure substance
5. A mixture whose contents are not mixed uniformly.
(e) Micture
37​

Answer 1

Answer:

OMG!!!!

so long question sorry I am don't understand this question