Question

space between outer nuclear membrane and inner nuclear membrane in nucleus is​

Answer 1

The nuclear envelope consists of two lipid bilayer membranes: an inner nuclear membrane and an outer nuclear membrane. The space between the membranes is called the perinuclear space. It is usually about 20–40 nm wide.
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Answer 2

Explanation:

in outer nuclear membrane and inner nuclear membrane in nucleus is Nucleoplasm & Nuclear envelope