Mole Calculations Multiple Choice Questions (MCQ) PDF Download

MCQ 1: The ratio of hydrogen to oxygen in a water molecule is equal to

1. 1:2 ratio
2. 2:1 ratio
3. 4:3 ratio
4. 1:4 ratio

MCQ 2: The molecular formula of different compounds shows actual numbers of

1. atoms
2. molecules
3. moles
4. ions

MCQ 3: Two Greek words 'element' and 'measure' constitutes the word

1. spectrometry
2. stoichiometry
3. elemetry
4. geometry

MCQ 4: The percentage by mass of any element is calculated with the help of

1. formula of compound only
2. relative atomic masses only
3. nucleon number
4. formula of compound and relative atomic masses

MCQ 5: The mass of each element in a compound helps in determining

1. empirical formula
2. molecular formula
3. structural formula
4. model