List of top Chemistry Questions

Which of the following statements is correct? Dielectric constant of $ {{H}_{2}}{{O}_{2}} $
For the square planar complex $[M(a)(b)(c)(d)]$ (where, $M =$ central metal and $a, b, c$ and $d$ are monodentate ligands), the number of possible geometrical isomers are
The electronic configuration of a dipositive ion $ {{M}^{2+}} $ is $2, 8, 14$ and its mass number is $56$. The number of neutrons present is
The heat of formation of $ C{{O}_{2}} $ is $ -95\text{ }kcal $ . The amount of carbon which on burning will evolve 1000 kcal is
Which statement best explains why A is more acidic than B?
Choose the reagent to carry out the reaction. $ C{{H}_{3}}C\equiv CC{{H}_{3}}\xrightarrow[{}]{{}}\underset{cis\text{ }form}{\mathop{C{{H}_{3}}CH=CHC{{H}_{3}}}}\, $
Which of the following would not form upon electrolysis of aqueous solution of potassium propanoate?
Among the following molecules or ions, which has the longest $ C-N $ bond?
Which of the following compounds can exist in enantiomeric (i.e., D and L) forms?
lodoform test is not answered by:
Which of the following is the correct electronic configuration of $Cr$?
Hydrogen peroxide is prepared in the laboratory by:
A gas has a vapour density $11.2$. The volume occupied by 1 gm of gas at NTP is:
The number of isomers for the compound with the molecular formula $ {{C}_{2}}BrClFI $ is
The most suitable reagent for the conversion of $ RC{{H}_{2}}OH\xrightarrow[{}]{{}}RCHO $ is
The major product in the above reaction is
Aldol condensation would not occur in
Which of the following is not a colligative property?
The main product obtained from phenol with $PCl_{5}$ is:
The first ionisation potential of $ Na,\,Mg,\,Al $ and $ Si $ are in the order:
Which of the following has maximum root mean square velocity at the same temperature ?
If the four tubes of a car are filled to the same pressure with $N_2, O_2, H_2$ and He separately, then which one will be filled first ?
Two vitamins absorbed from intestine along with fats are
Which is fight and flight organ ?
Which of the following gives blood red colour with KCNS ?