List of top Chemistry Questions

Explain the mechanism of acyl catalytic hydrogenation.
Assertion (A): For measuring resistance of an ionic solution an AC source is used.
Reason (R): Concentration of ionic solution will change if DC source is used.
Assertion (A): Henry’s law constant (KH) decreases with increase in temperature.
Reason (R): As the temperature increases, solubility of gases in liquids decreases.
A plot between concentration of reactant [R] and time ‘t’ is shown below. Which of the given order of reaction is indicated by the graph?
concentration of reactant [R] and time
In which of the following groups are both ions coloured in aqueous solution?
Which of the following aqueous solutions will have the highest freezing point?
The treatment of ethyl bromide with alcoholic silver nitrite gives:
The IUPAC name for CH3 - CH2 - N(CH3) - CH2 - CH2 - CH3 is :
CH3CH2OH can be converted to CH3CHO by :

Match the following: 

The compound which does not react with ammonical silver nitrate solution is:

Ratio of time required for 99% completion vs 90% completion of a first order reaction is:

Which of the following amines will give most easily \(\mathrm{N}_2\) gas on treatment with \(\mathrm{NaNO}_2 + \mathrm{HCl}\) at 275 K:
Which of the following is a double salt:
The amine which is most basic in gas phase is:
Which among the following is fibrous protein:
Which of the following fluid has \(\mathrm{pH}<7\):
Electrophile used in Kolbe’s reaction is:
When benzene diazonium chloride is treated with ethanol, the product obtained is:
Schiff’s base is formed by the reaction of aldehyde with:
Denaturation of alcohol is done by the help of:
The coordination number and oxidation number of \(\mathrm{Cr}\) in \(\mathrm{K}\left[\mathrm{Cr}\left(\mathrm{H}_2\mathrm{O}\right)_2\left(\mathrm{C}_2\mathrm{O}_4\right)_2\right]\) are:
Optical isomerism is shown by:
In which of the following elements the 6d orbital is vacant:
Benzene on reaction with benzoyl chloride in the presence of anhydrous \(\mathrm{AlCl}_3\) forms: