If the frequency of the source is increased, the impedance of the circuit first decreases and then increases.

If the net reactance $$\left(X_L-X_C\right)$$ of circuit becomes equal to its resistance, then the current leads the voltage by $$45^{\circ}$$.

At resonance, the voltage drop across the inductor is more than that across the capacitor.

At resonance, the voltage drop across the capacitor is more than that across the inductor.