Chemistry GK Quiz Questions

The property of metal by which it can be drawn into wires is called ductility.

An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19.

Photochemical is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Camphor and dry ice (solid CO2) sublimation reactions provide common examples.

The number of moles in 36 grams of water will be 2. The atomic number of any element is its molar mass.

The Correct Answer is J Chadwick. The atomic structure consists of protons, electrons, and neutrons. The nucleus of an atom consists of Protons and Neutrons. J Chadwick was not associated with the atomic model while the remaining three associated with the atomic model.

A hydrogen atom has only one proton, one electron and zero neutrons and the positively charged proton is approximately 1837 times as heavy as the mass of the negatively charged electron.

Soil is an example of a heterogeneous mixture that contains many different elements that are not uniform and the composition of the soil is unevenly distributed.

Electrons revolve around the nucleus in orbital motion. This motion involves the quantum mechanical motion of particles (electrons in this perspective). Orbital motion involves translation of the center of mass rather than rotation (rotation of the axis).

The atomic number of sodium (11) is higher than that of fluorine (9). ,