List of top Chemistry Questions

Nucleophilic addition reaction will be most favoured in:

What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromo phenol ?

Methyl bromide is converted into ethane by heating it in ether medium with

Which of the following is called Berthelot�s salt ?

\(SO_2\) does not acts as :

In the reaction $CH_3CN + 2H \xrightarrow [SnCl_2] {HCl}X \xrightarrow {\text{boiling} \, H_2 O} Y, $ The term $Y$ is :

The molar volume of $CO_2$ is maximum at:

How many asymmetric carbon atoms are present in : (i) $1,2$-dimethylcyclohexane, (ii) $3$-methylcyclopentene and (iii) $3$-methylcyclohexene ?

The crystal field splitting energy for octahedral $(\Delta_0)$ and tetrahedral $(\Delta_{t})$ complexes is related to :

The probability of finding the electron in the orbital is :

When glucose reacts with bromine water the main product is :

Name the complex Ni(PF)

If pH of a solution is 4, then $ {{\text{H}}^{\text{+}}} $ is:

If a mixture of $CO$ and $N_{2}$ in equal amount have total $1 \,atm $pressure, then partial pressure of $N_{2}$ in the mixture is

Which of the following pairs constitutes a buffer?

Which one of the following has unit positive charge and $1$ amu mass?

In which of the following complex ion, the central metal ion is in a state of $sp^3d^2$ hybridisation ?

The reaction ${B(OH)_3 + NaOH <=> Na[B(OH)_4]}$ $ { B(OH)_3 + NaOH <=> NaBO_2 + 2 \, H_2O}$ can be made to proceed to forward direction by the addition of

Among the following, the species having square planar geometry for central atom are: (i) $XeF _{4}$ (ii) $SF _{4}$ (iii) $\left[ NiCl _{4}\right]^{2-}$ (iv) $\left[ PtCl _{4}\right]^{2-}$

A reaction was found to be second order with respect to the concentration of carbon monoxide. If the concentration of carbon monoxide is doubled, with everything else kept the same, the rate of reaction will:

Which of the following can give a Grignard reagent when reacted with magnesium m dry ether?

The bond angle in $ \text{As}{{\text{H}}_{\text{3}}} $ is greater than that in:

Match the following lists:

Acidified $ \text{KMn}{{\text{O}}_{\text{4}}} $ oxidises oxalic acid to $ \text{C}{{\text{O}}_{2}}. $ What is the volume (in litres) of $ {{10}^{-4}}\text{M}\,\text{KMn}{{\text{O}}_{\text{4}}} $ required to completely oxidise 0.5 L of $ {{10}^{-2}}\text{M} $ oxalic acid in acid medium?