1.
Mass spectrometer is used to determine Mass number of isotopes and___________________?
2.
The number of peaks obtained in mass spectrometry shows____________________?
3.
Empirical formula of chloroform is____________________?
4.
Molecular mass of water (18g) means__________________?
5.
Which of the following statements about isotopes is correct ?
6.
One mole of CO2 contains?
7.
The number of isotopes of elements with even mass number and even atomic number are ________________?
8.
Which of the following terms is not used for ionic compound ?
9.
moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?
10.
Which one of the following has the maximum number of isotopes ?
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