Write with Positive Exponents $$- 243 ^ { - 4 / 5 }$$

question 138

Multiple Choice

Write with positive exponents. Simplify if possible.
- $$- 243 ^ { - 4 / 5 }$$

• A) \(\frac { 1 } { 81 }\)
• B) 81
• C) \(- \frac { 1 } { 81 }\)
• D) not a real number

---

Definitions:

NaBH4

Sodium borohydride, a reducing agent commonly used in organic synthesis to reduce aldehydes, ketones, and alkenes.

Williamson Ether Synthesis

A chemical reaction used to synthesize ethers from alcohols and organohalides through an S_N2 mechanism.

Major Organic Product

The primary product resulting from an organic chemical reaction, often with the highest yield.

Williamson Ether Synthesis

A method for preparing ethers by reacting an alkoxide ion with a primary alkyl halide or tosylate under basic conditions.