Assertion (A) : With the increase of temperature, the viscosity of glycerine increases. Reason (R) : Rise of temperature increases kinetic energy of molecules.

Assertion (A) is false: experimental and literature data show that heating glycerin/glycerol markedly lowers its viscosity — for example, heating from room temperature to 100 °C reduces glycerin’s viscosity by about two orders of magnitude [1]. More generally, the viscosity of liquids decreases as temperature increases due to weakened intermolecular resistance to flow [2]. Reason (R) is true: raising temperature increases the kinetic energy of molecules, as noted in standard thermodynamic discussions of heating effects [3]. Thus R is true but it does not support A (it actually explains why viscosity falls with increasing temperature), so the correct choice is: A is false but R is true.

Sources

1. [1] https://www.researchgate.net/figure/Glycerin-properties-at-different-temperatures_tbl1_257403743
2. [2] https://www.sciencedirect.com/topics/mathematics/viscous-force
3. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 26: Tropical Cyclones > Vapour Pressure of Water And Rate of Evaporation > p. 358