1 |
Which of the following gas is used by plants for making food. |
Hydrogen
Oxygen
Nitrogen
Carbon dioxide
|
2 |
The symbol of Lithum is. |
He
Li
Ne
Lu
|
3 |
The number of proton present in atom is called. |
Atomic number
Atomic mass
Atomic weight
Mass
|
4 |
The subatomic particles of an atom are. |
Proton
Electron
Neutron
All of these
|
5 |
Which of the following state has specific shape and volume. |
Gas
Solid
Liquid
Both a and b
|
6 |
Matter exist in |
Solid
Liquid
gas
All of these
|
7 |
Water, carbon dioxide, ammonia and methane are examples of. |
Atoms
Elements
Compounds
Mixture
|
8 |
Number of the neutrons in helium element. |
1
2
3
4
|
9 |
Which one of the following is an element. |
O3
CO2
CH4
H2O
|
10 |
C6H12O6is he formula of glucose. How many oxygen are there in one molecule of glucose. |
3
6
9
12
|