
The number of geometrical isomers for the provided structure is determined as follows:
Stereocenter Identification: Three stereocenters are present in the given structure, affecting the overall geometric arrangements.
Geometrical Isomer Calculation: The theoretical maximum number of geometric isomers is calculated using the formula:
Total Geometrical Isomers = 2n
where n represents the count of stereocenters. For this structure:
23 = 8
However, molecular symmetry leads to equivalent configurations, thus reducing the count of distinct geometrical isomers.
Final Isomer Count: Accounting for symmetry and duplicate configurations, the structure exhibits a total of 4 unique geometrical isomers.
For the thermal decomposition of reactant AB(g), the following plot is constructed. 
The half life of the reaction is 'x' min.
x =_______} min. (Nearest integer)}