If the volume of a gas is doubled at constant temperature, its pressure will: MCQ with Answer and Explanation

Explanation:
James Chadwick discovered the neutron in 1932 by bombarding beryllium with alpha particles, which emitted a highly penetrating radiation consisting of neutral particles with mass similar to protons. Thomson discovered the electron, Rutherford the proton, and Dalton proposed the foundational atomic theory of matter.

Explanation:
The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances responsible for ozone depletion, most notably chlorofluorocarbons (CFCs). Both statements are correct, and R perfectly explains the purpose of the protocol.

Explanation:
Graphite has a layered structure where each carbon is sp² hybridized, forming three sigma bonds with neighboring carbons, leaving one unhybridized p orbital electron delocalized over the entire layer. These mobile electrons allow electrical conduction parallel to layers. Diamond, with all four electrons in covalent bonds, is an insulator. Both the assertion and reason are correct, and the reason correctly explains the conductivity of graphite.