Free Chemistry in Daily Life MCQs with Answers

301. What are the three subatomic particles of an atom?

• A. Protons,Neutrons & Electrons
• B. Protons,Nucleus & Electrons
• C. Protons,Nucleus & Elements.
• D. Elements,Nucleus & Protons

Explanation: Protons, neutrons and electrons are the three basic subatomic particles commonly taught in atomic structure. The nucleus is a central part of the atom containing protons and neutrons, not a subatomic particle itself.

302. What are considered the building blocks of matter?

• A. Molecules
• B. Protons
• C. Elements
• D. Atoms

Explanation: Atoms are commonly called the building blocks of matter because they combine to form molecules and larger substances. Molecules are groups of bonded atoms, while elements are pure types of atoms.

303. All matter is made of ___________?

• A. Air
• B. Water
• C. Vibrations
• D. Atoms

Explanation: In basic science, matter is described as being made of atoms, which may join to form molecules or larger structures. Air and water are forms of matter, not the universal constituents of all matter.

304. _________ is anything that takes up space and has mass.

• A. Matter
• B. Gravity
• C. Energy
• D. Plasma

Explanation: Matter is defined by two properties: it has mass and occupies space. Gravity is a force, energy is the capacity to do work, and plasma is only one state of matter.