A. Relative abundance
B. Average mass of element
C. Number of isotopes
D. Relative isotopic mass
The number of peaks obtained in mass spectrometry shows____________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. Atomic number
B. Relative abundance
C. Electronic configuration
D. All of the above
Mass spectrometer is used to determine Mass number of isotopes and___________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. 0.2m
B. 0.2mm
C. 0.2nm
D. 0.2pm
Diameter of an atom is in the order of________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. Paint
B. Glass
C. Gun Powder
D. Cement
What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called? Read More »
Chemistry Mcqs, Everyday Science McqsCovalent network crystals have_____________?
A. higher melting point then molecular crystals
B. lower melting point then molecular crystals
C. discrete molecules linked by Van der waals forces
D. hydrogen bonding
Covalent network crystals have_____________? Read More »
Chemistry Mcqs, Everyday Science McqsAll of the following substances are crystalline except_____________?
A. Ice
B. Diamond
C. Sucrose
D. Plastic
All of the following substances are crystalline except_____________? Read More »
Chemistry Mcqs, Everyday Science McqsSome substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?
A. ionic substances
B. metallic substances
C. molecular solids
D. covalent network solids
Which of the following is a substance?
A. Sea water
B. Brass
C. Tape water
D. Graphite
E. Sand
In chemistry, a substance refers to a matter which has specific composition and specific properties which do not change. A substance can be an element or a compound. A substance typically has a constant composition, which can not be separated by physical methods. Seawater and sand are not substances, because they have varied compositions and their components can be separated by physical methods.
Which of the following is a substance? Read More »
Chemistry Mcqs, Everyday Science McqsSodium carbonate is produced by____________?
A. haber process
B. Amonia solvay process
C. decons process
D. lead chamber process
Sodium carbonate is produced by____________? Read More »
Chemistry Mcqs, Everyday Science McqsElectron was discovered by?
A. Michael Faraday
B. James Maxwell
C. Yuri Gagarin
D. J.J Thomson
Electron was discovered by? Read More »
Chemistry Mcqs, Everyday Science Mcqs