A. Empirical formula
B. Molecular mass
C. Molecular formula
D. Formula mass
Combustion analysis is performed to determine__________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. identification of elements
B. estimation of amounts of elements
C. molar ration of elements
D. molar volume of elements
Qualitative analysis is carried out for _________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. they possess different mass number
B. they possess different physical properties
C. they possess same chemical properties
D. they possess different position in the periodic table
Which of the following statements is wrong about isotopes ? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. 1.008 mg
B. 0.184 mg
C. 0.054 mg
D. 5.4 mg
The mass of decimole of electrons (NA) is___________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. arsenic
B. uranium
C. iodine
D. nickel
Which one of the following is not the mono isotopic element ? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. relative atomic mass
B. mass number
C. atomic weight
D. relative isotopic mass
Which of the following terms is used for the mass of chlorine 35.5 ? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. Atomicity
B. Shape of molecule
C. Both A and B
D. Difficult to predict
Size of molecule depends upon________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. volume of particles
B. number of particles
C. mass of particles
D. All of the above
Avogadros number may represent_________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. Gas
B. Liquid
C. Volatile solid
D. All
A. Uni-negative
B. Uni-positive
C. Di-negative
D. Di-positive
Which of the following ion formation is always exothermic ? Read More »
Chemistry Basic Concept, Chemistry Mcqs