List of top Questions asked in UP Board XII- 2023

Who was the writer of 'Ashtadhyayi'?
Who translated Akbarnama in English?
Who wrote "Humayunnama"?
78 CE is related to
When did Madho Swaroop Vatsa begin excavations at Harappa ?
'Hunuj Delhi dur ast' is the statement of
From which of the Harappan sites has the evidence of "Great Granary" been found?
Why is chlorine atom of chlorobenzene less reactive than chlorine atom of chloroethane? Write chemical equations of reactions of chlorobenzene with (A) Cl$_2$ and (B) conc. H$_2$SO$_4$.
Write short notes on the following:
(A) Electrophilic substitution in halobenzene,
(B) Wurtz–Fittig reaction,
(C) Applications of Grignard’s reagent.
Which Sufi saint's dargah is located at Ajmer ?
Write the structural formula of benzaldehyde. Write chemical equations of the reaction of benzaldehyde with (A) NH$_2$NH$_2$, (B) Tollen’s reagent and (C) NaOH.
Write I.U.P.A.C. name of Acetaldehyde. Write chemical equations of its reaction with (A) NaHSO$_3$, (B) NaOH, (C) NH$_2$NH$_2$, and (D) HCN.
Write the structural formula and I.U.P.A.C. name of D-glucose. How will you prove the presence of aldehyde group in glucose molecule?
Zwitter ion.
Write the reaction of ozone with lead sulphide.
Denaturation of protein.
Write the reaction between NO (g) and O\(_3\) (g).
Uses of protein.
Write I.U.P.A.C. name of CH\(_3\)CH\(_2\)OCH\(_2\)CH\(_2\)CH\(_3\).
Write balanced chemical equation of the reaction of ethanamine with NaNO\(_2\) + dil. HCl.
Reaction of nitric acid and zinc.
Which of 0.1 M urea and 0.1 M NaCl will have more osmotic pressure? Explain with reason.
Write balanced chemical equation of the reaction of ethanamine with Hinsberg reagent.
What are tetrahedral voids?
Reaction of conc. HNO\(_3\) with I\(_2\).