You are currently viewing ch2 chemistry class 9 mcq | chapter 2 chemistry class 9
ch2 chemistry class 9 mcq | chapter 2 chemistry class 9

ch2 chemistry class 9 mcq | chapter 2 chemistry class 9

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1. 
How many laws of chemical changing?

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2. 
In what year was the chemist Lavoisier a scientist?

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3. 
In which year did albert Einstein propose?

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4. 
In which year did John Dalton publish the elements?

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5. 
What is the mass of nitrogen in nitrous oxide?

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6. 
What is the mass of oxygen in nitrous oxide?

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7. 
What is the mass of nitrogen in nitric oxide?

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8. 
What is the mass of oxygen in nitric oxide?

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9. 
What is the mass of nitrogen in nitrogen traioxide?

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10. 
What is the mass of oxygen in nitrogen traioxide?

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11. 
What is the mass of nitrogen in tetroxide?

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12. 
What is the mass of oxygen in nitrogen tetroxide?

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13. 
What is the mass of nitrogen in nitrogen pentoxide?

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14. 
What is the mass of oxygen in pentoxide?

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15. 
What is the mass of hydrogen in water?

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chemistry mcqs for class 9 chapter 1

Ghulam Mustafa

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