Which one of the following is a trihydric alcohol containing only secondary hydroxyl groups?

Question

Which one of the following is a trihydric alcohol containing only secondary hydroxyl groups? (A)  underset beginsmallmatrix | OH endsmallmatrix mathopCH2 - underset beginsmallmatrix | OH endsmallmatrix mathopCH - underset beginsmallmatrix | OH endsmallmatrix mathopCH2  (B)  CH3- underset beginsmallmatrix | OH endsmallmatrix mathopCH - underset beginsmallmatrix | OH endsmallmatrix mathopCH - underset beginsmallmatrix | OH endsmallmatrix mathopCH -CH3  (C)  CH3- underset beginsmallmatrix | HO endsmallmatrix mathop overset beginsmallmatrix CH3 | endsmallmatrix mathopC - underset beginsmallmatrix | OH endsmallmatrix mathopCH -CH2-OH  (D)  underset beginsmallmatrix | HO endsmallmatrix mathopCH2 - underset beginsmallmatrix | HO endsmallmatrix mathop overset beginsmallmatrix CH3 | endsmallmatrix mathopC - underset beginsmallmatrix | OH endsmallmatrix mathopCH -CH3

Tardigrade Admin · Accepted Answer

: CH3- underset beginsmallmatrix | OH endsmallmatrix overset2° mathopCH - underset beginsmallmatrix | OH endsmallmatrix overset2° mathopCH - underset beginsmallmatrix | OH endsmallmatrix overset2° mathopCH -CH3

Q. Which one of the following is a trihydric alcohol containing only secondary hydroxyl groups?

$∣ O H C H_{2} - ∣ O H C H - ∣ O H C H_{2}$

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

$C H_{3} - ∣ H O C C H_{3} ∣ - ∣ O H C H - C H_{2} - O H$

$∣ H O C H_{2} - ∣ H O C C H_{3} ∣ - ∣ O H C H - C H_{3}$

: $C H_{3} - ∣ O H C H 2^{\circ} - ∣ O H C H 2^{\circ} - ∣ O H C H 2^{\circ} - C H_{3}$

Q. Which one of the following is a trihydric alcohol containing only secondary hydroxyl groups?

∣OH​CH2​​−∣OH​CH​−∣OH​CH2​​

CH3​−∣OH​CH​−∣OH​CH​−∣OH​CH​−CH3​

CH3​−∣HO​CCH3​∣​​−∣OH​CH​−CH2​−OH

∣HO​CH2​​−∣HO​CCH3​∣​​−∣OH​CH​−CH3​

: CH3​−∣OH​CH2∘​−∣OH​CH2∘​−∣OH​CH2∘​−CH3​

$∣ O H C H_{2} - ∣ O H C H - ∣ O H C H_{2}$

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

$C H_{3} - ∣ H O C C H_{3} ∣ - ∣ O H C H - C H_{2} - O H$

$∣ H O C H_{2} - ∣ H O C C H_{3} ∣ - ∣ O H C H - C H_{3}$

: $C H_{3} - ∣ O H C H 2^{\circ} - ∣ O H C H 2^{\circ} - ∣ O H C H 2^{\circ} - C H_{3}$