Which of the following terms is used for the mass of chlorine 35.5 ?

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. Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

   A. Cl2O
   B. ClO2
   C. Cl2O6
   D. Cl2O7

3. A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?

   A. 74% Fe
   B. 75% Fe
   C. 77% Fe
   D. 78% Fe

   Submitted by: Muhammad Ali Kunbhar

4. A single chlorine free radical can destroy how many ozone molecules ?

   A. 10
   B. 100
   C. 10000
   D. 100000

5. Which is the paramagnetic oxide of chlorine ?

   A. Cl2O7
   B. Cl2O6
   C. ClO2
   D. all

6. The colour of chlorine gas is_______________?

   A. pale yellow
   B. freenish yellow
   C. reddish brown
   D. grayish black

7. Chlorine Cl when attached to benzene has________?

   A. +I and +R effect
   B. -1 and +R effect
   C. +1 and -R effect
   D. -I and -R effect

   Submitted by: Muhammad Ali Kunbhar

8. Z number for chlorine is __________?

   A. 35.5
   B. 17
   B. 15
   D. 21

   Submitted by: Aamir khan Hullio

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

   A. lighter
   B. intermediate
   C. heavier
   D. are collected at same time

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

    A. formula unit
    B. empirical formula
    C. molecular formula
    D. formula mass