How Many Structural Isomers Are Possible for a Substance Having

question 21

Multiple Choice

How many structural isomers are possible for a substance having the molecular formula C₄H₁₀?

• A) 1
• B) 2
• C) 4
• D) 3
• E) 11

---

Definitions:

Defined Benefit Plan

A type of pension plan where the employer promises a specified pension payment upon retirement, based on an employee's earnings history, tenure of service, and age.

Defined Contribution Plan

A type of retirement plan where the amount contributed to the plan is specified, but the benefit received at retirement depends on the plan's investment performance.

Endowment Fund

A fund established by a foundation, institution, or individual, where the principal amount is kept intact while the investment income is available for use.

Variable Annuity

An insurance product that provides future payments to the holder, with the payouts varying depending on the performance of the investment options chosen.