List of top Questions asked in UP Board XII

Explain the following terms: (i) Zwitter ion
(ii) Peptide bond
(iii) Primary structure of protein
(iv) Polysaccharides
Write structures of the following compounds: (i) 2-Chloro-3-methylpentane
(ii) 1,4-dibromobut-2-ene
(iii) 1-Bromo-2,2-dimethylpropane
(iv) 1-Bromo-2-methylbut-2-ene
(v) 1-Chloro-2-methylbenzene
How do the following factors affect the velocity of reaction? (i) Concentration
(ii) Temperature
(iii) Catalyst
Explain in brief the Faraday's laws of Electrolysis. CuSO$_4$ solution was electrolysed for 20 minutes with 2.0 ampere current. What will be the mass of precipitated copper at cathode?
Boiling point of propanol is greater than butane. Explain.
Explain Cannizzaro reaction with chemical equation.
What is nucleic acid? Write two important properties of them.
A cell in which the following reaction occurs:
\[ \text{Zn}_{(s)} + \text{Cu}^{2+}_{(aq)} \rightarrow \text{Zn}^{2+}_{(aq)} + \text{Cu}_{(s)} \] has standard electrode potential \(E^\circ_{\text{cell}} = 1.1~\text{V}\) at \(298~\text{K}\). Calculate the standard Gibbs energy and the equilibrium constant of the cell reaction.
In a solution 30 mass percent of benzene is dissolved in carbon tetrachloride. Calculate mole fraction of benzene.
Explain Raoult's Law.
Transition metals and their maximum compounds are paramagnetic. Explain it.
The spin-only magnetic moment value of \([\mathrm{MnBr}_4]^{2-}\) is \(5.9\,\mathrm{BM}\). What will be the geometry of the complex ion?
Write the uses of carbon tetrachloride and chloroform.
The correct order of increasing acid strength is
Which of the following gives a positive Fehling's solution test?
Best method of preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is
Compound of which transition metal ion is colourless?
Oxidation number of cobalt in K[Co(CO)$_4$] is
Example of gaseous solution is
Write a note on Colour blindness.
Write a note on Thalassaemia.
Write an essay on search for genetic material.
What do you understand by biodiversity? How can it be preserved?
What are antibiotics? What is their importance in human life?
What is the use of biotechnology in the field of medicine?