List of top Chemistry Questions

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 chemical equation for the formation of chlorobenzene by Sandmeyer reaction. How can the following compounds be obtained from chlorobenzene? Clarify giving chemical equations.
(i) Phenol
(ii) Toluene
(iii) Diphenyl

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

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

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?}

Which of the following ions does not form coordination compound?

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 –

Bromination of Aniline gives –

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

In the following ions which one is a paramagnetic ion?

Write short notes on the following:
i) Tischenko reaction
ii) Cannizzaro's reaction
iii) Clemmensen reduction

How will you obtain (Write chemical equation only):
i) Ethyl alcohol from Grignard's reagent
ii) Tertiary alcohol from Grignard's reagent
iii) Ethyl alcohol from Methyl alcohol
iv) Diethyl ether from Ethyl alcohol
v) Ethyl acetate from Ethyl alcohol

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) $\mathrm{C_6H_5NH_2 + CH_3COCl \xrightarrow{\,base\,}} \;\longrightarrow$