List of top Chemistry Questions

The brown ring test for nitrates depends on
Glucose contains in addition to aldehyde group
An example for autocatalysis is
Liquor ammonia bottles are opened only after cooling. This is because

Raffinose is a :

The oxidation number of oxygen in hydrogen peroxide is:
$KF$ combines with $HF$ to form $KHF_2$. The compound contains the species:
The molecular electronic configuration of $Be_2$ is:
Which of the following silver salts is insoluble in water ?
For the reaction (at $1240 \,K$ and $1$ atm.) $ CaCO_3 (s) \rightarrow CaO(s) + CO_2 (g) $ $\Delta H = 176 \, kJ/ mol; \Delta E$ will be :
Which of the following is deliquescent ?
Dacron is polymer of :
Among the following sets of quantum numbers. Which one is incorrect for $4d$ electron ?
Charles' law is represented mathematically as :
Cyanohydrin of which of the following forms lactic acid:
Incorrect statement for pyrophosphorus acid $H_4P_2O_5$ is :
, A will have configuration :
A radioactive isotope has a half life of $10$ days. If today $125$ mg is left over, what was its original weight $40$ days earlier ?
H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because:
The correct order of acid strength is
What is the correct relationship between the pHs of isomolar solutions of sodium oxide (pH1),sodium sulphide (pH2),sodium selenide (pH3) and sodium telluride (pH4)?
The correct order in which the O—O bond length increases in the following is:
Which of the following molecules has trigonal planar geometry?

Which amongst the following is the most stable carbocation?

Names of some compounds are given. Which one is not correct in IUPAC system ?