If two similar capacitors of 4 μF each are connected in series the equivalent capacitance is:
The speed of sound in air at room temperature is approximately:
A body of mass 0.5 kg moving with a velocity of 4 m/s has momentum equal to:
The velocity of sound is maximum in:
Boyle's law states that at constant temperature:
Which of the following is the rate of change of velocity?
Which row describes the type of bonding present in substances 1 and 2? Substance 1: Potassium chloride | Substance 2: Methane
Which statement does NOT describe a property of a weak acid in solution?
Which does NOT describe a reaction at equilibrium?
For which combination of acids and bases is the titration method of preparation suitable?
Which does NOT increase the rate of reaction by affecting the number or nature of collisions?
Which of the following changes is endothermic?
A mixture produces a gas both when it reacts with an acid and when it reacts with an alkali. Which ions are present?
In a Redox reaction electrons are transferred from:
Soap-making process in industries is known as: