List of top Chemistry Questions

: At high pressure, the compression factor $Z$ is $\left(1+\frac{P b}{R T}\right)$. : At high pressure van der Waals' equation is modified as $P(V-b)=R T$.
: According to Kohlrausch law the molar conductivity of a strong electrolyte at infinite dilution is sum of molar conductivities of its ions. : The current carried by cation and anion is always equal.
An atom has electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{3} 4 s^{2}$, you will place it in
A reaction occurs spontaneously if
$CH _{3} OC _{2} H _{5}$ and $\left( CH _{3}\right)_{3} C - OCH _{3}$ are treated with hydroiodic acid. The fragments after reactions obtained are
One mole of methanol when burnt in $O _{2}$, gives out $723\, kJ\, mol ^{-1}$ heat. If one mole of $O _{2}$ is used, what will be the amount of heat evolved?
The species having tetrahedral shape is
Which of the following does not exist as a Zwitter ion?
The hydrocarbon which does decolourise alkaline $KMnO_{4}$ solution and also does not give any precipitate with ammoniacal silver nitrate is
Plexiglass is a commercial name of
Which one of the following is the true covalent oxide of iodine?
When $H _{2} S$ gas is passed through the $HCl$ containing aqueous solution of $CuCl _{2}, HgCl _{2}$, $BiCl _{3}$ and $CoCl _{2}$, it does not precipitate out
The temperature dependence of rate constant $(k)$ of a chemical reaction is written in terms of Arrhenius equation $k=A e^{-E_{\alpha} / R T}$. Activation energy $\left(E_{a}\right)$ of the reaction can be calculated by ploting
Among the following components of cement which is present in highest amount?
Acetamide and $NaOBr/OH^-$ produce
According to MOT,$ C_2$ molecule has
The number of moles of $ KMnO_{4} $ reduced by one mole of $KI$ in alkaline medium is
Which of the following oxidation states are the most characteristics for lead and tin respectively?
Which of the following polymers is prepared by condensation polymerisation ?
Which one of the following is a chain growth polymer?
Which one of the following ions is the most stable in aqueous solution? (At. no. $Ti = 22, V = 23, Cr = 24, Mn = 25$ )
Which one of the following shows functional isomerism ?
Which one of the following statements about amino acids is not true?
If $NaCl$ is doped with $10^{-4}\, mol \, \% $ of $SrCl_2,$ the concentration of cation vacancies will be $(N_A = 6 . 0 2 3 \times 10^{23}\,mol^{-1})$
The helical structure of protein is stabilized by