Matter in Our Surroundings — Science STD 9 — Question

State whether the following statement is true or false:

Milk is a pure substance.

State whether the following statements are true or false:
The cathode rays obtained from all the gases consist of negatively charged particles called electrons.

Most part of the atom is hollow.

State whether the following statements are true or false:
The anode rays obtained from all the gases consist of positively charged particles called protons.

Sea water is a mixture.

State whether the following statement is true or false:
Solid carbon dioxide is stored under low pressure.

State whether the following statements are true or false:
Thomson proposed that the nucleus of an atom contains protons and neutrons.

State whether the following statement is true or false:
Red brown bromine vapour diffuse into air in a gas jar but the colourless air molecules do not diffuse into bromine vapour.

State whether the following statements are true or false:
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.