WorksheetsHalf Yearly Examination - Chemistry
Total questions: 13
Worksheet time: 8mins
Who gave the 'Law of Conservation of Mass'?
P.C. Ray
John Dalton
Antoine Lavoisier
S.N. Bose
The zig-zag movement of small particles suspended in a medium.
Diffusion
Brownian Motion
Non-metals are malleable and ductile.
True
False
Who proposed the 'Plum Pudding Model'?
Marie Curie
Joseph Priestly
John Dalton
J.J. Thomson
The process by which a liquid changes into vapour state.
Decantation
Sedimentation
Filtration
Evaporation
The chemist who performed the 'Gold Foil Experiment'.
Ernest Rutherford
John Dalton
Dmitri Mendeleev
J.J. Thomson
Diagrammatic representation for the compound 'water'.
Cl + Zn + Cl
H + O + H
O + O
Separating grain from stalk:
Winnowing
Threshing
Handpicking
Loading
The Scottish Botanist who discovered Brownian Motion.
John Dalton
Daniel Rutherford
Robert Brown
Niels Bohr
Which of the following has closely packed particles?
Solids
Liquids
Gases
All of these
Mass is the measure of (a) of matter contained in a substance.
An element is a (a) as it has atoms of only one kind.
(a) were regarded as early chemists.
