A. 20cm3/min
B. 40cm3/min
C. 160cm3/min
D. 2.5cm3/min
A. a solvent
B. an anti freezing agent
C. a substitute for petrol
D. for denaturing of ethyl alcohol
Methyl alcohol is not used as___________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. pressure
B. volume
C. moles
D. density
All the following variables are used to describle gases except__________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. 5
B. 4
C. 3
D. 2
Dempsters mass spectrometer has number of zones / parts_________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. 0.5
B. 1
C. 1.5
D. 2
A. neutrons
B. protons and electrons
C. protons
D. protons and neutrons
The nucleus of an atom of every element will always contain____________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. Combustion method
B. Dumas method
C. Kjeldahls method
D. All of the above methods are for different purposes
Which of the following methods is used to estimate hydrogen in an organic compound ? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. properties which depend upon mass
B. arrangement of electrons in orbitals
C. chemical properties
D. all of the above
Isotopes differ in_________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs 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