Question

Statement 1: The viscosity of the liquid increases rapidly with rising of temperature.
Statement 2: Viscosity of a liquid is the property of the liquid by virtue of which it opposes the relative motion amongst its different layers.

• A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
• C. If assertion is true but reason is false.
• D. If the assertion and reason both are false.

Answer 1

The correct option is C If assertion is true but reason is false.

The viscosity of liquid decreases rapidly with rise of temperature.The variation of viscosity of liquid with temperature is given by $\eta ={\eta }_0(1+\alpha t+\beta t^2)$
Where ${\eta }_t$ and ${\eta }_0$ are the coefficient of viscosities at $t^{\circ }C$ and $0^{\circ }C$ respectively and $\alpha$ and $\beta$ are constant.