A. 1-mole molecules of water
B. 1-gram molecule of water
C. 3-gram atoms
D. all
Molecular mass of water (18g) means__________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs A. CH2 C12
B. CH3C1
C. CC14
D. CHCL3
Chloroform is a colorless, sweet-smelling organic compound with the IUPAC name Trichloromethane and formula CHCl3. Chloroform can daze or knock out people even when it’s consumed in small doses.
Empirical formula of chloroform is____________________? Read More »
Chemistry Basic Concept, Chemistry Mcqs 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