What leukocyte is formed in bone marrow and having neutral staining granules?

The correct answer is Neutrophil.

Neutrophils are the most abundant type of white blood cell, accounting for 50-70% of all circulating leukocytes. They are formed in the bone marrow and released into the bloodstream, where they circulate for about 10 hours before being destroyed. Neutrophils are phagocytic cells, meaning that they engulf and destroy foreign particles. They also produce reactive oxygen species and antimicrobial peptides, which help to kill bacteria. Neutrophils are essential for the body's defense against infection, and they play a role in inflammation and wound healing.