Compounds MCQs with Answers

One-liner

2 moles of sodium chloride (NaCl) is equal to 117 grams.

One-liner

Sodium Chloride (NaCl) has the strongest bonding in the solid state because it forms a giant ionic lattice held together by strong electrostatic forces between oppositely charged ions.

One-liner

Potassium iodide is a strong electrolyte because it dissociates completely into ions in aqueous solution.

One-liner

Ionic solids are characterized by solubility in polar solvents because polar solvents like water can dissociate the ionic lattice through ion-dipole interactions.

One-liner

A compound is a pure substance containing only one type of molecule, which is made up of atoms of two or more different elements chemically bonded together.

One-liner

A substance must be an alkane when it has the general formula CnH2n+2.

One-liner

The dipole moment is zero in CS₂ because it is a linear molecule with symmetrical charge distribution, causing the bond dipoles to cancel each other out.

One-liner

CH3CH2CHO and CH3COCH3 are isomers because they share the same molecular formula (C3H6O) but have different structural arrangements.

One-liner

A compound is a pure substance formed when two or more different elements are chemically combined in a fixed ratio by mass.

One-liner

Carbon compounds are primarily studied under organic chemistry, but carbon also appears in inorganic compounds (e.g., CO₂, carbonates), and their physical properties fall under physical chemistry, making All of these the correct answer.