The theme of this article is to investigate hydrodynamic flow of an incompressible second grade nanoliquid by
a curved stretched sheet. Energy expression is developed through dissipation and Joule heating. Brownian and
thermophoresis diffusion are also scrutinized. Physical feature of entropy generation is discussed. Isothermal
cubic autocatalytic chemical reactions are discussed. Suitable transformations are used to develop the
ordinary differential system. To develop a convergent series solution we employed the Optimal Homotopy
Analysis Technique (OHAM). Graphical description of velocity, entropy generation, temperature distribution
and concentration versus sundry parameters are discussed. An opposite behavior in velocity field is noted for
magnetic and curvature parameters. Temperature distribution and velocity field have reverse trends for melting
parameter. An augmentation in temperature is observed for radiation parameter. Larger magnetic variable
lead to improve the entropy generation. Entropy optimization is boosted versus higher magnetic
parameter.