Question

(.1-(A) Fill in the blanks.
1 Electron, proton, neutron are the types of
ANURADHA ENGLISH MEDIUM SCHOOL CHIKHLI
SECOND UNIT TEST 2020-2021
Sub-Science
Std- & th 6
A EMS
Marks- 30
4
in an atom.
2) Milk is an example of type of matter called
3) The valency of hydrogen is 'one as per the molecular formula H20. Therefore valency
of Fe' turns out to be
as per the formula Fe2O3.
4) Water, mercury and bromine are similar o each other, because three are
(B) Choose the correct answer.
D] The Intermolecular force is
in the paricles of solid.
(a) Minimum
(c) maximum
(b) Moderate
(d) Indefinite.
The electron shell
is nearest to the nucleus.
la
(6) M
G K
(a) N
3) Valency of arbon is 4 and that of oxygen is 2. From this, we understand that there are
chemical bond/bonds between the carbon atom and one oxygen atom in the
compound-carbon dioxide,
(b) 2
tha
alo
यन्तु विश्व
(d) 4
4) The electronic configuration magnesium is
a) 2, 8, 1.
(b) 2, 8, 2.
(d) 2, 8, 4.
(c) 2, 8, 3
(C) Match the columns:
1) Proton
E
a) Negatively charged
- S
2) Baking soda
b) Positively charged
3) Electron
c) Caco,
4) Ume stone
d) NaHCO3​

Answer 1

Answer:

A

1. Subatomic particles

2. Homogenous mixture

3. Three

4. Liquids

Answer 2

Answer :-

1.subatomic particles

2.Homogenous mixture

3.Three

4.Liquids

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