MCQ
The following carbohydrate is
- Aa ketohexose
- ✓an aldohexose
- Can $\alpha$-furanose
- Dan $\alpha$-pyranose
✓
Answer
Correct option: B.
an aldohexose
b
It is a $\beta$-pyranose (since $OH$ group is above at anomeric carbon) hence, it is an aldohexose.
It is a $\beta$-pyranose (since $OH$ group is above at anomeric carbon) hence, it is an aldohexose.
If one of the group on anomeric carbon is $- CH _2 OH$ then it is ketohexose.
Option $B$ is correct.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the above reaction. Left hand side and right hand side rings are named as ' $A$ ' and ' $B$ ' respectively. They undergo ring expansion. The correct statement for this process is:
→Which $d-$ block element is expected to have highest enthalpy of atomisation, among the following ?
→$Xe{F_4}$ Processing strongly with water gives .......
→When $FeCl_3$ reacts with $K_4[Fe(CN)_6]$ then which of the following compound is formed
→$p$-Amino- $N, N$-dimethylaniline is added to a strongly acidic solution of ${X}$. The resulting solution is treated with a few drops of aqueous solution of ${Y}$ to yield blue coloration due to the formation of methylene blue. Treatment of the aqueous solution of ${Y}$ with the reagent potassium hexacyanoferrate$(II)$ leads to the formation of an intense blue precipitate. The precipitate dissolves on excess addition of the reagent. Similarly, treatment of the solution of ${Y}$ with the solution of potassium hexacyanoferrate$(III)$ leads to a brown coloration due to the formation of ${Z}$.
→$1.$ The compound ${X}$ is
$(A)$ $\mathrm{NaNO}_3$ $(B)$ $\mathrm{NaCl}$ $(C)$ $\mathrm{Na}_2 \mathrm{SO}_4$ $(D)$ $\mathrm{Na}_2 \mathrm{~S}$
$2.$ The compound ${Y}$ is
$(A)$ $\mathrm{MgCl}_2$ $(B)$ $\mathrm{FeCl}_2$ $(C)$ $\mathrm{FeCl}_3$ $(D)$ $\mathrm{ZnCl}_2$
$3.$ The compound ${Z}$ is
$(A)$ $\left.\mathrm{Mg}_2 \mid \mathrm{Fe}(\mathrm{CN})_6\right]$ $(B)$ $\operatorname{Fe}\left[\mathrm{Fe}(\mathrm{CN})_6\right]$
$(C)$ $\mathrm{Fe}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]_3$ $(D)$ $\mathrm{K}_2 \mathrm{Zn}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]_2$
Give the answer question $1,2$ and $3.$
Principal organic product of the reaction will be
Correct order of bond angle for bond will be
The number of oxygen atoms bonded to one phosphorous atom in $P_4O_6$ is
→Arrange the following diagrams in correct sequence of steps involved in the mechanism of catalysis, in accordance with modern adsorption theory.
The reaction
$
\frac{1}{2} H_{2(g)}+AgCl_{(aq)} \rightleftharpoons H_{(aq)}^{+}+Cl_{(aq)}^{-}+Ag_{(s)}
$ takes place in a galvanic cell. Its correct representation is :
→$
\frac{1}{2} H_{2(g)}+AgCl_{(aq)} \rightleftharpoons H_{(aq)}^{+}+Cl_{(aq)}^{-}+Ag_{(s)}
$ takes place in a galvanic cell. Its correct representation is :