Chemistry

Practice category questions below.

1455 QuestionsType: optional

Questions in this Category

Q1. Mass spectrometer is used to determine Mass number of isotopes and___________________?

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Q2. The number of peaks obtained in mass spectrometry shows____________________?

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Q3. Empirical formula of chloroform is____________________?

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Q4. Molecular mass of water (18g) means__________________?

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Q5. Which of the following statements about isotopes is correct ?

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Q6. One mole of CO2 contains?

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Q7. The number of isotopes of elements with even mass number and even atomic number are ________________?

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Q8. Which of the following terms is not used for ionic compound ?

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Q9. moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?

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Q10. Which one of the following has the maximum number of isotopes ?

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