MDCAT 2026 MCQs

Pascal's principle is used in hydraulic machines.
The same pressure can produce different forces on different piston areas.

Momentum is p=mv.
P=6×4 = 24 kg·m/s.

Immersion displaces fluid and creates an upward resultant pressure force.
That force equals the displaced fluid's weight.

Solubility depends on temperature and the nature of solute and solvent.
For gases, pressure also matters.

A saturated solution is in equilibrium with undissolved solute.
Additional solute will not dissolve under unchanged conditions.

More solute can dissolve in an unsaturated solution.
Its concentration is below the solubility limit.

Crystalline solids have repeating lattice structures.
They often have sharp melting points.

Glass is a common amorphous solid.
Such solids often soften over a temperature range.

The solvent is usually the component in larger amount.
The solute is dispersed at the molecular or ionic level.

Sigma bonds have electron density along the internuclear axis.
Every single covalent bond is a sigma bond.

Bubbles can form throughout the liquid at the boiling point.
Lower external pressure lowers boiling temperature.

Pi bonds place electron density above and below the bond axis.
Double and triple bonds contain pi bonding.