Chemistry B
Quiz
•
Chemistry
•
10th Grade
•
Hard
+3
Standards-aligned
Charles Martinez
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
In which of the following compounds does hydrogen form ionic compounds?
CH4
HCl
NH3
NaH
Tags
NGSS.HS-PS1-3
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
An organic compound has the empirical formula CH2. If its molar mass is 42gmol−1, what is its molecular formula? (C = 12.0, H = 1.0)
C2H4
C3H4
C3H6
C4H8
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pure water can be made to boil at a temperature lower than 100°C by
reducing its quantity
decreasing the external pressure
distilling it
increasing the external pressure
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The valence electrons of 12Mg are in the
3s orbital
2px orbital
2s orbital
1s orbital
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The number of Hydrogen ions in 1.0dm³ of 0.02moldm−3 tetraoxosulphate(VI) acid is [NA=6.02 × 1023]
1.2 × 1023
2.4 × 1023
1.2 × 1022
2.4 × 1022
Tags
NGSS.HS-PS1-5
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The most suitable substance for putting out petrol fire is
water
carbon(IV) oxide
fire blanket
sand
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The following factors would contribute to environmental pollution except
production of ammonia
manufacture of cement
photosynthesis
combustion
Tags
NGSS.HS-LS2-7
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