(A) Rutherford
(B) Bohr
(C) Dobereiner
(D) John Newland
Tag: Chemistry mcqs
The repetition of properties after regular intervals is called?
(A) Mean
(B) Mod
(C) Periodicity
(D) Acidity
Rule of Triad was introduced by?
(A) Rutherford
(B) Dobereiner
(C) Bohr
(D) None of the above
The mass of (1) mole of substances expressed in grams is called?
(A) Molecular mass
(B) Formula mass
(C) Empirical formula
(D) Molecular formula
44 amu of CO2 is equal to?
(A) Atomic mass
(B) Molar mass
(C) Molecular mass
(D) None of the above
5 moles of H2O are equal to?
(A) 70g
(B) 80g
(C) 90g
(D) 100g
Average mass of natural mixture of isotopes which is compared to the mass to the mass of one atom of C-12 amu is called?
(A) Atomic mass
(B) Mass number
(C) Atomic number
(D) None of the above
A given compound always contains exactly the same proportion of elements by mass is the statement of?
(A) Law of reciprocal proportions.
(B) Law of definite proportions.
(C) Law of multiple proportions.
(D) Law of conservation of mass.