chemistry quiz
Authored by muhammed muhsin
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8th Grade
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amnong the following which one is noble gas?
Hydrogen
Helium
Nitrogen
Carbon
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The submbol of elements saodium is.......
S
SO
Na
Se
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The number of hydrogen present in 3 H2O is
3
2
9
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The valancy of element Mg is
2
1
+1
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molecular formula of benzen
C6H21
C6H12
C5H10
C6H6
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