Question

Anti-transpirants are broadly classified based on how they reduce water loss from plants. One particular chemical, applied at about 5% concentration, works purely by reflecting incoming solar radiation away from the leaf surface, thereby lowering leaf temperature and indirectly reducing transpiration. Which chemical is this?

A Phenyl mercuric acetate
B Kaolin
C Atrazine
D Cycocel (CCC)
E Silicone wax
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