Question

Tick (✓) the most appropriate answer : --
1. The constituents of a compound --
(a) cannot be separated
(b) can be separated by physical means
(c) can be separated by chemical means
(d) none of these
2. The smallest independent unit of matter
is --
(a) molecule
(b) compound
(c) element
(d) atom
3. An element is made up of --
(a) two kinds of atoms
(b) many kinds of atoms
(c) one kind of atom
(d) one kind of molecule
4. The symbol for one molecule of nitrogen
is --
(a) N
(b) N2
(c) 2N
(d) none of these
5. The formula of aluminium sulphate is --
(a) AISO4
(b) Al(SO4)2
(c) Al(SO4)3
(d) Al2(SO4)3

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Answer 1

1). a

2). d

3). c

4) a

5) d

I'm sure

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Answer 2

Answer:

1) can be separated by chemical means

2) atom

3) many kind of atoms

4) N

5) AI2(SO4)3

Hope this answer helps you...