Half Yearly Examination - Chemistry

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