Explanation

 Radon is a radioactive noble gas that is used in radiotherapy for cancer treatment due to its ability to emit alpha particles, which can penetrate and damage cancer cells. 

Explanation

A photon is a boson, which is a particle with an integer spin that transmits electromagnetic force. 

Proton: Protons are fermions, which have a half-integer spin. 

Neutrino: Neutrinos are also fermions. 

Pion: While considered a meson, pions are composite particles made of quarks and antiquarks and are classified as bosons. 

Explanation

 There are two isomers possible for the molecular formula C₂H₆O: ethanol (also known as ethyl alcohol) and dimethyl ether.

These two molecules have the same number of carbon, hydrogen, and oxygen atoms

However, their atoms are arranged differently, resulting in distinct properties

Explanation

  Plastids are organelles specific to plant cells, responsible for photosynthesis and the storage of starch.

Animal cells do not have plastids. 

Explanation

CN (cyanide ion) is a Lewis base.

Because it donates an electron pair to form a coordinate covalent bond.

Explanation

Steel is an alloy of iron (Fe) and carbon (C), with small amounts of other elements like manganese, chromium, and vanadium.

It's a mixture of two or more elements, where at least one is a metal, making it an alloy.

Explanation

• Butter is a mixture of solid fat particles (solute) dissolved in liquid oil (solvent), making it a solid-liquid solution.
• This type of solution is also known as a sol or a gel.

Explanation

sp² hybridization involves one s and two p orbitals, forming three hybrid orbitals in a planar triangular (trigonal planar) shape.

The bond angles in this geometry are approximately 120°, seen in molecules like BF₃ or C₂H₄.

Explanation

Water (H₂O) is a polar solvent due to its asymmetrical molecular structure.

It results in a slightly positive charge on the hydrogen atoms.

A slightly negative charge on the oxygen atom.

Explanation

Selenium (Se) is a metalloid, which means it exhibits some properties of metals and some properties of nonmetals.

Metalloids are elements that are intermediate in character between metals and nonmetals.