Question
Explain chemical composition of nucleic acids.
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
Calculate $\Delta_r H ^0$ of the reaction
$CH _{4( g )}+ O _{2( g )} \rightarrow CH _2 O _{( g )}+ H _2 O _{( g )}$
From the following data:
→$CH _{4( g )}+ O _{2( g )} \rightarrow CH _2 O _{( g )}+ H _2 O _{( g )}$
From the following data:
| Bond | $C - H$ | $O = O$ | $C = O$ | $O = H$ |
| $\Delta H^0 / kJ mol ^{-1}$ | 414 | 499 | 745 | 464 |
Explain the general structures of hydrides of group $16$ elements.
Give reason : Bond angle decreases from $H_2O$ to $H_2S.$
→Give reason : Bond angle decreases from $H_2O$ to $H_2S.$
Alcohols $( R - OH )$, phenols $( Ar - OH )$ and carboxylic acids $( R - COOH )$ can undergo ionization of $O - H$ bond to give away proton $H ^{+}$; yet they have different $pK _{ a }$ values, which are 16,10 and 4.5 respectively. Explain.
→Define d-block elements.
The reaction $A + B \rightarrow$ Products, is first order in each of the reactants,
(a) Write the rate law.
(b) How does the reaction rate change if the concentration of $B$ is decreased by a factor 3 ?
(c) What is the change in the rate if the concentration of each reactant is tripled?
(d) What is the change in the rate, if the concentration of $A$ is doubled and that of $B$ is halved?
→(a) Write the rate law.
(b) How does the reaction rate change if the concentration of $B$ is decreased by a factor 3 ?
(c) What is the change in the rate if the concentration of each reactant is tripled?
(d) What is the change in the rate, if the concentration of $A$ is doubled and that of $B$ is halved?
Write chemical reaction for the preparation of the following polymer.
polyacrylonitrile
polyacrylonitrile
How are following compounds prepared by hydrolysis of alkyl halides
(1) Ethanol
(2) Isopropyl alcohol
(3) tert-butyl alcohol
(4) methyl alcohol
(5) butan-2-ol?
(1) Ethanol
(2) Isopropyl alcohol
(3) tert-butyl alcohol
(4) methyl alcohol
(5) butan-2-ol?
The dissociation constant of benzoic acid $\left( C _6 H _5 COOH \right)$ is $6.6 \times 10^{-5}$. Calculate the hydrogen ion concentration of a solution containing $1.22 g$ of benzoic acid in $2000 mL$ of water.
→$\varepsilon$-Caprolactam.
→Distinguish between order and molecularity of a reaction.
Write gases liberated at cathode and anode during electrolysis of aqueous NaCl solution.
Write two uses of neon.
Write gases liberated at cathode and anode during electrolysis of aqueous NaCl solution.
Write two uses of neon.