List of top Chemistry Questions

The correct relationship between free energy change in a reaction and the corresponding equilibrium constant, $K_c$ is

The correct order of the packing efficiency in different types of unit cells is

The correct order of leaving group ability in nucleophilic substitution reaction is

The correct order of the increasing basicity of methyl amine, ammonia and aniline is

The correct order of reactivity of halogens with alkalies is

The correct order of radii is

The correct order of increasing energy of atomic orbitals is

The correct order of electronegativity among halogens is :

The correct order of electron affinity among the following is

The correct order of increasing radii of the ions $ {Br^{-}, F^{-} , O^{2-}}$ and $ {S^{2-}}$ is as follows:

The correct order of chemical composition of living tissues/cells in term of percentage of the total cellular mass is

The correct order of bond angles in the molecules, $H_2O, NH_3, CH_4$ and $CO_2$ is

The correct order of decreasing ionic character of $PbF_2, PbCl_2, PbBr_2$ and $Pbl_2$ are

The correct order of acidic strength is

The correct order of acidity of oxoacids of halogens is

The correct IUPAC name of the antiseptic chloroxylenol is

The correct IUPAC name of $Mn_3(CO)_2$ is

The correct $IUPAC$ name of the coordination compound $K_{3}[Fe(CN)_{5}NO]$ is

The correct $IUPAC$ name of the following compound is $[Cr(NH_{3})_{5}(NCS)] [ZnCl_{4}]$

The correct functional group $X$ and the reagent/ reaction conditions $Y$ in the following scheme are

(i) $X=COOCH_{3}, X=H_{2} $/Ni/heat (ii)$X=CONH_{2}, P=H_{2}$/Ni/heat (iii)$X= CONH_{2}, Y= Br_{2}/NaOH$ (iv)$X- CN, Y= H_{2}$/Ni/heat

The correct IUPAC name of $AlCl_3$.4(Et.OH) is

The correct IUPAC name of $Fe(C_5H_5)_2$ is

The correct increasing order of acidity of $ {CO_2, H_2O}$ and $ {H_2O_2}$ is

The correct expression of partial pressure in terms of mole fraction is

The correct formula of Zeise's salt is