List of top Chemistry Questions

The reaction, $ C{{H}_{3}}COCl\xrightarrow[2H]{Pd/BaS{{O}_{4}}}C{{H}_{3}}CHO+HCl $ is called:
The product, when glycerol is heated with oxalic acid at $ 110{}^\circ C, $ is:
The monomer of PMMA is:
Formic acid and acetic acid can be distinguished by:
By passing $H_2S$ gas in acidified $KMnO_4$ solution, we get
Among the lanthanides, the one obtained by synthetic method is
In which of the following reactions, there is no change in valency ?
Brown ring test is used to detect
A certain compound X when treated with copper sulphate solution yields a brown precipitate. On adding hypo solution, the precipitate turns white. The compoundXis
Lassaigne's test for the detection of nitrogen fails in
The weakest among the following types of bond is

The O-O-H bond angle in \(H_2O_2\) is

Schotten-Baumann reaction is a reaction of phenols with
The temperature of the gas is raised from $27^\circ C\, to\, 927^\circ C$ the root mean square velocity is
The distance between two adjacent carbon atoms is largest in
50 mL of hydrogen diffuses out through a small hole of a vessel, in 20 minutes. The time taken by 40 mL of oxygen to diffuse out is
Phosphorus has the oxidation state of + 3 in
Peptide bond is a key feature in
The common oxidation states of Ti are
The boiling point of p-nitrophenol is higher than that of o-nitrophenol because
Correct the increasing order of acidity is as
The process of separation of a racemic modification into d and l-enantiomers is called
Sounds above what level are considered hazardous noise pollution?
Among the following, the one which is most basic is

Which among the following is paramagnetic?