List of top Chemistry Questions

Vapour density of a metal chloride is 47.5. If the valency of metal is 2, the metal is:
For the reaction, $2N_{2}O_{5} \to 4NO_{2} + O_{2}$ rate and rate constant are $1.02 \times 10^{-4}\,mol\, L^{-1} s^{-1}$ and $3.4 \times 10^{-5} s^{-1}$ respectively. The concentration of $N_{2}O_{5}$ in mol $L^{-1}$ will be
Which of the following is correct about $H$-bonding in $DNA$?
Correct order of 1st ionisation potential (IP) among following elements Be, B, C, N, O is
Which one of the following gives positive Fehling's solution test?
Intermediates formed during reaction of RCNH2||O with Br2 and KOH are
The incorrect IUPAC name is
In steam distillation of toluene, the pressure of toluene in vapour is
The atomic number (Z) of an element is 25. In its ground state, how many electrons are present in the 'N' shell ?
Which of the following is not correctly matched
Half life period of C14 is
Which is not correct regarding the adsorption of a gas on surface of solid
Pure water can be obtained from sea water by
Ionisation constant of $ CH_3COOH $ is $ 1.7 \times 10^{-5} $ and concentration of $ H^+ $ ions is $ 3.4 \times 10^{-4} $ . Then, find out initial concentration of $ CH_3COOH $ molecules.
Which of the following is correct statement?
Spoilage of oil can be detected by which fatty acid
Which of the following is correxct about Hbonding in nucleotide
-C||ONH-(peptide bond) which statement is incorrect about peptide bond
An electron in hydrogen atom makes a transition $n_1 \rightarrow n_2$ where $n_1$, and $n_2$ are principal quantum numbers of the two states. Assuming Bohr?? model to be valid, the time period of the electron in the initial state is eight times that in the final state. The possible
Which statement is incorrect?
Which of the following will give maximum number of isomers?
Which of the following will exhibit maximum ionic conductivity?
Which of the following statement is not correct
Nitrogen form N2, but phosphorous form P2, it's at a time convert in P4, reason is
L.S.D. is