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JEE Advanced 2024 Paper 2 Online
Numerical
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For a double strand DNA, one strand is given below:

JEE Advanced 2024 Paper 2 Online Chemistry - Biomolecules Question 1 English

The amount of energy required to split the double strand DNA into two single strands is _______ kcal $\operatorname{mol}^{-1}$.

[Given: Average energy per H-bond for A-T base pair $=1.0 ~\mathrm{kcal}~ \mathrm{mol}^{-1}$, G-C base pair $=1.5 ~\mathrm{kcal}$ $\mathrm{mol}^{-1}$, and A-U base pair $=1.25 ~\mathrm{kcal} ~\mathrm{mol}^{-1}$. Ignore electrostatic repulsion between the phosphate groups.]

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2
JEE Advanced 2020 Paper 2 Offline
Numerical
+3
-1
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The structure of a peptide is given below.

JEE Advanced 2020 Paper 2 Offline Chemistry - Biomolecules Question 14 English
If the absolute values of the net charge of the peptide at $\mathrm{pH}$ $=2$, $\mathrm{pH}=6$, and $\mathrm{pH}=11$ are $\left|Z_1\right|,\left|Z_2\right|$, and $\left|Z_3\right|$, respectively, then what is $\left|Z_1\right|+\left|Z_2\right|+\left|Z_3\right|$?
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3
JEE Advanced 2014 Paper 1 Offline
Numerical
+3
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The total number of distinct naturally occurring amino acids obtained by complete acidic hydrolysis of the peptide shown below is
JEE Advanced 2014 Paper 1 Offline Chemistry - Biomolecules Question 12 English
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4
JEE Advanced 2013 Paper 1 Offline
Numerical
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The total number of lone-pairs of electrons in melamine is
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