List of top Chemistry Questions

What is $X$, in the following reaction? $KHSO _{4}+ F _{2} \longrightarrow HF +X$
Ortho and para-nitrophenol can be separated by steam distillation. Para-nitrophenol is steam volatile due to intramolecular hydrogen bonding.
28 g of $ {{N}_{2}} $ and $6\,g$ of $ {{H}_{2}} $ were mixed. At equilibrium, $17\,g$ $ N{{H}_{3}} $ was produced. The weights of $ {{N}_{2}} $ and $ {{H}_{2}} $ at equilibrium are respectively
The mixture of reactants and products in the equilibrium state is called?
In a chemical equilibrium reaction, $ aA+ bB \leftrightharpoons cC + dD,$ which of the following is correct?
$K_{c}$ for the the reaction, $\left[ Ag ( CN )_{2}\right]^{-} \rightleftharpoons Ag ^{+}+2 CN ^{-}$, the equillibrium constant at $25^{\circ} C$ is $4.0 \times 10^{-19}$, then the silver ion concentration in a solution which was originally $0.1$ molar in $KCN$ and $0.03$ molar in $AgNO _{3}$ is :
Which one is most reactive towards nucleophilic addition reaction?
A gaseous mixture containing $He,\, CH _{4}$ and $SO _{2}$ was allowed to effuse through a fine hole then find what molar ratio of gases coming out initially? (Given mixture contains $He,\, CH _{4}$ and $SO _{2}$ in $1: 2: 3$ mole ratio $)$.
Which one is least reactive towards nucleophilic substitution reaction?
In a galvanic cell, the salt bridge
The acid strength of active methylene group in (I) $CH_3COCH_2COOC_2H_5$ (II) $CH_3COCH_2COCH_3$ (III) $C_2H_5OOCCH_2COOC_2H_5$ decreases as
Match the following and choose the correct combination from the options given.
Treatment of chloroethane with a saturated solution of $AgCN$ gives ethyl isocyanide as the major product. Cyanide $\left( CN ^{-}\right)$is an ambident nucleophile.
Reaction of alcohols with $SOCl _{2}$ is catalysed by the presence of a tertiary amine $\left(R_{3} N \right)$. Tertiary amine promote the reaction by reacting with the by-product $HCl$.
Which of the following is not an actinoid?
Which one of the following is an example for homogeneous catalysis?
Which type of crystals contains more than one Bravais lattice?
Which is a bactericidal antibiotic?
Which halogen forms only one oxoacid (HOX)?
Which cell will measure standard electrode potential of copper electrode?
When $CO_2$ is passed through solution of sodium aluminate, precipitate of which compound is formed?
What is the oxidation number of Mn in $K_2MnO_4$ ?
What is the oxidation number of $Br$ in $KBrO_4$ ?
What is ????in the following reaction?
van der Waals equation for one mole of $CO_2$ gas at low pressure will be