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- 1. Multiple Choice
Identify the Symbol of Calcium
Na
Mg
Ca
Cl
- 2. Fill in the Blank
The Number of atoms in a molecule or compound defines its__________.
- 3. Fill in the Blank
Find the Mass of 3 moles of NaCl.
- 4. Multiple Choice
Identify Nitrogen gas
N
NO
N2
2N
- 5. Multiple Choice
The atomicity of K2Cr2O7 is:
9
11
10
12
- 6. Multiple Choice
In ammonia NH3, Nitrogen and Hydrogen are in the ratio_____by mass.
14:5
14:3
14:8
14:2
- 7. Multiple Choice
This is a dalton's symbol of which element?
Carbon
Sulphur
Gold
Magnesium
- 8. Fill in the Blank
Full form of IUPAC is
- 9. Multiple Choice
amu is the abbrevation unit of?
Mole
Volume
Mass
No. of particles
- 10. Multiple Choice
The group of two or more elements is called__________.
Atom
Molecule
Complex
None of the above
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