A. relative atomic mass
B. mass number
C. atomic weight
D. relative isotopic mass
Related Mcqs:
- 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 - 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 - 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% FeSubmitted by: Muhammad Ali Kunbhar
- A single chlorine free radical can destroy how many ozone molecules ?
A. 10
B. 100
C. 10000
D. 100000 - Which is the paramagnetic oxide of chlorine ?
A. Cl2O7
B. Cl2O6
C. ClO2
D. all - The colour of chlorine gas is_______________?
A. pale yellow
B. freenish yellow
C. reddish brown
D. grayish black - 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 effectSubmitted by: Muhammad Ali Kunbhar
- Z number for chlorine is __________?
A. 35.5
B. 17
B. 15
D. 21Submitted by: Aamir khan Hullio
- 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 - Which of the following terms is not used for ionic compound ?
A. formula unit
B. empirical formula
C. molecular formula
D. formula mass
