• If Q is directly proportional to V and C is just a constant to remove this proportionality then why it is Q equals CV NOT;V equalsQC?

Since C here is the proportionality constant .and it is the capacitance of a conductor.which means what amount of charge it can store per unit potential difference applied across the ends of the conductor.and since capacitance of a conductor specifically constant.So it is the charge wich is dependant on the capacitance and potential difference .THe main point is by the formula q=CV, it states that amount of charge which can be stored in a capacitor depends on the capacitance of the conductor and potential difference applied.

if Not then This might be helpful-The amount of charge that can be placed in a capacitor is directly proportional to the voltage pushing the charge on the capacitor .the larger the potential difference between the plates the larger the charge on the plates. so we have to write Q=CV.PLZ approve