1. Tardigrade
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  3. Chemistry
  4. STATEMENT 1: The geometrical isomers of the complex [ M ( NH 3)4 Cl 2] are optically inactive and STATEMENT 2: Both geometrical isomers of the complex [ M ( NH 3)4 Cl 2] possess axis of symmetry.

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Q. STATEMENT 1 : The geometrical isomers of the complex $\left[ M \left( NH _{3}\right)_{4} Cl _{2}\right]$ are optically inactive and
STATEMENT 2 : Both geometrical isomers of the complex $\left[ M \left( NH _{3}\right)_{4} Cl _{2}\right]$ possess axis of symmetry.

JEE AdvancedJEE Advanced 2008

Solution:

Both cis and trans form of the given complex $\left[ M \left( NH _{3}\right)_{4} Cl _{2}\right]$ are optically inactive due to the presence of plane of symmetry and alternate axis of symmetry.
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A molecule is said to possess $n$-fold alternate axis of symmetry, if rotation of molecule along the axis by an angle of $360 / n$ followed by reflection in a plane perpendicular to the axis results in the same structure.