List of top Chemistry Questions asked in UP Board XII

Write the chemical equation for the preparation of anisole. Write the chemical equations of its reactions with:
i) Acetyl chloride
ii) Hydrogen iodide
iii) Mixture of conc.\ H$_2$SO$_4$ and conc.\ HNO$_3$

Write the IUPAC names of the following coordinate compounds:
(i) [CrCl$_2$(en)]Cl
(ii) Cs[FeCl$_4$]
(iii) K$_3$[Co(C$_2$O$_4$)$_3$]
(iv) [CoCl$_3$(NH$_3$)$_3$]

Write the structures of all possible isomers of alcohol having molecular formula C$_4$H$_{10$O.}

Find the osmotic pressure of $\dfrac{M{10}$ urea solution at $27^\circ\mathrm{C}$ \ (Given: $R=0.0821$ L\,atm\,K$^{-1}$\,mol$^{-1}$).}

Find the emf of the cell reaction: \(\mathrm{Zn(s)+2Ag^+(aq)\rightarrow Zn^{2+}(aq)+2Ag(s)}\).
\(\,E^\circ_{\mathrm{Zn^{2+}/Zn}}=-0.76\,\text{V}, E^\circ_{\mathrm{Ag^+/Ag}}=+0.80\,\text{V}\).

In solution Cu$^+$ ions are colourless while Cu$^{2+$ ions are coloured. Why?}

Product obtained by hydrolysis of inulin is –

Acetic acid reacts with hydrazoic acid in the presence of conc. H$_2$SO$_4$ at 0$^\circ$C to form –

Which of the following ions does not form coordination compound?

Bromination of Aniline gives –

In the following ions which one is a paramagnetic ion?

The concentration of 0.2 M H$_2$SO$_4$ solution will be in g/L –

Write short notes on the following:
(i) Hunsdiecker reaction
(ii) Frankland's reaction
(iii) Dehydrohalogenation

Complete the following equations:
(i) $\mathrm{CH_3CH_2CH_2OH + SOCl_2 \;\longrightarrow\; ?}$
(ii) $\mathrm{CH_3CH_2CH{=}CH_2 + HBr \;\longrightarrow\; ?}$
(iii) $\mathrm{(CH_3)_3CBr + KOH \;\longrightarrow\; ?}$
(iv) $\mathrm{CH_3CH_2Br + KCN \xrightarrow{Ethanol\ (aq.)}\; ?}$
(v) $\mathrm{CH_3CH_2Br + AgNO_2 \xrightarrow{alc.}\; ?}$

Complete the following equations:
(i) $\mathrm{C_6H_5NH_2 + CHCl_3 + KOH(alc)} \;\longrightarrow$
(ii) $\mathrm{C_6H_5NH_2 + Br_2(aq)} \;\longrightarrow$
(iii) $\mathrm{C_6H_5NH_2 + (CH_3CO)_2O} \;\longrightarrow$
(iv) $\mathrm{C_6H_5NH_2 + H_2SO_4(conc.)} \;\longrightarrow$
(v) $\mathrm{C_6H_5NH_2 + CH_3COCl \xrightarrow{\,base\,}} \;\longrightarrow$