Which of the following is optically active?

Question

Which of the following is optically active? (A) CH3 - underset overset|OH overset underset|HC - underset overset|OH overset underset|HC-CH3 (B)  CH3-CHOH-CH3  (C) CH3 - underset overset||OC- underset overset|Br overset underset|BrC-COOH (D) CH3 - CH2 - underset overset|OHC = O

Tardigrade Admin · Accepted Answer

Optically active compounds have at least one asymmetric or chiral carbon atom. Compound given in option [a] contains two chiral carbon atoms as

C H_{3} - O ∣ H C * ∣ H - O ∣ H C * ∣ H - C H_{3}

∴

it is optically active.

Q. Which of the following is optically active?

$C H_{3} - O ∣ H C ∣ H - O ∣ H C ∣ H - C H_{3}$

$C H_{3} - C H O H - C H_{3}$

$C H_{3} - O ∣∣ C - B ∣ r C ∣ B r - COO H$

$C H_{3} - C H_{2} - O ∣ H C = O$

Optically active compounds have at least one asymmetric or chiral carbon atom. Compound given in option [a] contains two chiral carbon atoms as
$C H_{3} - O ∣ H C * ∣ H - O ∣ H C * ∣ H - C H_{3}$
$∴$ it is optically active.

Q. Which of the following is optically active?

CH3​−O∣HC∣H​​−O∣HC∣H​​−CH3​

CH3​−CHOH−CH3​

CH3​−O∣∣C​−B∣rC∣B​r​−COOH

CH3​−CH2​−O∣HC​=O

Optically active compounds have at least one asymmetric or chiral carbon atom. Compound given in option [a] contains two chiral carbon atoms as CH3​−O∣HC∗∣H​​−O∣HC∗∣H​​−CH3​ ∴ it is optically active.

$C H_{3} - O ∣ H C ∣ H - O ∣ H C ∣ H - C H_{3}$

$C H_{3} - C H O H - C H_{3}$

$C H_{3} - O ∣∣ C - B ∣ r C ∣ B r - COO H$

$C H_{3} - C H_{2} - O ∣ H C = O$

Optically active compounds have at least one asymmetric or chiral carbon atom. Compound given in option [a] contains two chiral carbon atoms as
$C H_{3} - O ∣ H C * ∣ H - O ∣ H C * ∣ H - C H_{3}$
$∴$ it is optically active.