Download App

Biomolecules — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules2 Marks
Question
Draw the double helical structure of DNA.
✓

Answer

Get the step-by-step solution for this question inside the Vidyadip app.

Get the answer in the app

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Why is $Cr^{2+}$ reducing and $Mn^{3+}$ oxidising when both have $d^4$ configuration$?$
→
When fresh grapes are kept in concentrated salt solution they shrink, whereas when they are kept back in water they swell up. Why?
→
A compound $‘A\ ’$ having molecular formula $\ce{C_4H_{10}O}$ is found to be soluble in concentrated sulphuric acid. It does not react with sodium metal or potassium permanganate. On heating with excess of $HI,$ it gives a single alkyl halide. Deduce the structure of compound $A$ and explain all the reactions.
→
What are reduction potential and oxidation potential?
→
Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: $E_{Ag+/Ag}$ increases with increase in concentration of $Ag^+$ ions.
Reason: $E_{Ag+/Ag}$ has a positive value.
→
For a reaction
$2\text{H}_2\text{O}_2\xrightarrow[\text{alkaline medium}]{\text{I}^-}2\text{H}_2\text{O}+\text{O}_2$
the proposed mechanism is as given below:
  1. $\text{H}_2\text{O}_2+\text{I}^{-}\xrightarrow{\ \ \ \ \ \ \ }\text{H}_2\text{O}+\text{IO}^{-}(\text{slow})$
  2. $\text{H}_2\text{O}_2+\text{IO}^{-}\xrightarrow{\ \ \ \ \ \ \ }\text{H}_2\text{O}+\text{I}^{-}+\text{O}_2(\text{fast})$
  1. Write rate law for the reaction.
  2. Write the overall order of reaction.
  3. Out of steps (1) and (2), which one is rate determining step?
→
How is $1-$propoxypropane synthesised from propan$-1-ol$? Write mechanism of this reaction.
→
Write the reactions involved in the following reactions :
  1. Clemmensen reduction
  2. Cannizzaro reaction
→
Discuss the physical properties of aldehydes and ketones in term of their boiling point.
→
Draw the structures of polar isomers of $\left[ Co ( e )_3\right]^{3+}$
→