When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen__________________?

Related Mcqs:

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

   A. Atomic number
   B. Relative abundance
   C. Electronic configuration
   D. All of the above

2. Dempsters mass spectrometer has number of zones / parts_________________?

   A. 5
   B. 4
   C. 3
   D. 2

3. Compounds attracted by applied strong magnetic field are called__________________?

   A. diamagnetic
   B. paramagnetic
   C. good conductor
   D. ferromagnetic

4. Molecular ions are formed by passing______________________?

   A. High energy electron beam
   B. ? – particle
   C. X-rays
   D. All of the above

5. Oxygen (molecular weight = 32) diffuses at a rate of 10cm3/min under the same conditions of temperature and pressure how fast will hydrogen (molecular weight = 2) diffuse ?

   A. 20cm3/min
   B. 40cm3/min
   C. 160cm3/min
   D. 2.5cm3/min

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

   A. 1-mole molecules of water
   B. 1-gram molecule of water
   C. 3-gram atoms
   D. all

7. By which method the molecular mass of benzene was determined as 78.108 ?

   A. Specific gravity method
   B. Vapour density method
   C. X-ray diffraction method
   D. Distillation methos

8. A compound is determined to have an emperical formula of C2H6O and a molar mass of 138 g/mole. What is the molecular formula?

   A. C2H6O
   B. C6H18O3
   C. C6H12O6
   D. C2H5O

   Submitted by: Muhammad Ali Kunbhar

9. A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?

   A. C2H4
   B. C3H6
   C. C4H8
   D. C5H10

   Submitted by: Muhammad Ali Kunbhar

10. Splitting of spectral lines when atom is subjected to magnetic field is called _______________?

    A. Zeemans effect
    B. Starks effect
    C. Photo electric effect
    D. Compton effect