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8th
grade

Chemistry

71%

accuracy

4.8K

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6 years

Chemistry

8th

grade

Language of Chemistry

user

4.8K
plays

10 questions

10 questions

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1. Multiple Choice
30 seconds
1 pt
Short hand representation for the atom of a specific element
element
atom
symbol
2. Multiple Choice
30 seconds
1 pt
Symbol of copper is
Co
Cu
Ca
3. Multiple Choice
30 seconds
1 pt
The valency of Chlorine in AlCl₃ is
1
3
2
4. Multiple Choice
30 seconds
1 pt
Sulphur shows valencies
2
4
both
5. Multiple Choice
30 seconds
1 pt
The molecular formula for Ammonium carbonate is
(NH₄)₂CO₃
(NH₄ )CO₃
(NH₄ )₂CO
6. Multiple Choice
30 seconds
1 pt
Name the elements present in Ammonia
nitrogen
hydrogen
both nitrogen and hydrogen
7. Multiple Choice
30 seconds
1 pt
Most suitable element and most widely accepted standard unit for the measurement of atomic mass
Oxygen
Carbon
Nitrogen
8. Multiple Choice
30 seconds
1 pt
The molecular formula for Nitric acid
HNO₃
HNO₂
HNO
9. Multiple Choice
30 seconds
1 pt
Molecular formula for the oxide of calcium is
CaO
Ca2O
none
10. Multiple Choice
30 seconds
1 pt
The symbol and valency of ammonium is
NH₄ , valency is 1
NH₃, valency is 1
NH₃, valency is 2
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