MCQ
Which do the following vitamins has isoprene units in its structure
- ✓Vitamin $A$
- BVitamin $C$
- CVitamin ${B_2}$
- DVitamin $D$
✓
Answer
Correct option: A.
Vitamin $A$
a
Vitamin $-A$ contains isoprene unit.
Vitamin $-A$ contains isoprene unit.
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
The metal used as a catalyst in the hydrogenation of oils is:
The strongest base is
$E.C.E.$ of Cu and Ag are $7 \times {10^{ - 6}}$ and $1.2 \times {10^{ - 6}}.$A certain current deposits $14\, gm$ of $Cu$. Amount of $Ag$ deposited is .............. $\mathrm{gm}$
→The correct structural formula of zeise's salt is
For certain chemical reaction $X \rightarrow Y$, the rate of formation of product is plotted against the time as shown in the figure. The number of Correct statement/s from the following is $.......$.
→$(A)$ Over all order of this reaction is one
$(B)$ Order of this reaction can't be determined
$(C)$ In region$-I$ and $III$, the reaction is of first and zero order respectively
$(D)$ In region$-II$, the reaction is of first order
$(E)$ In region$-II$, the order of reaction is in the range of $0.1$ to $0.9$.
Which is incorrect for given reaction sequence $C{H_3} - CN\xrightarrow[{(2)\,{H_2}O}]{{(1)\,C{H_3}MgBr}}X\xrightarrow{{2,4 - DNP}}Y$
→Find a wrong statement from the given statements.
A mixture of methanol vapours and air is passed over heated copper. The products are
Heating together of sodium ethoxide and ethyl iodide will give:
Which of the following parent oxy acid does not have its hypo acid ?