Shubham Jha - Class 9
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The molecular formula of potassium nitrate is
Anonymous Quiz
20%
Kno2
15%
No2
58%
Kno3
8%
Kno4
An element X is divalent and another element Y is tetravalent. The compound formed by these two elements will be:
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23%
Xy
40%
Xy2
28%
Xy3
10%
X2y
The atomic mass of sodium is 23. The number of moles in 46g of sodium is ________.
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21%
4
51%
2
18%
0
11%
1/2
The atomic mass of sodium is 23. The number of moles in 46g of sodium is ________.
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35%
18u
35%
81u
21%
87u
8%
78u