List of top Chemistry Questions

In photoelectric effect, the kinetic energy of the photoelectrons increases linearly with the
The charge on $Fe(OH)_3$ sol is due to
IUPAC name of the compound
In the extraction of copper, the copper matte is a mixture of
Reaction between propene and $HCl$ to form iso-propyl chloride takes place through
What is the maximum number of emission lines obtained when the excited electron of a hydrogen atom in $ n=5 $ drops to the ground state?
$ {{N}_{2}} $ and $ {{O}_{2}} $ are converted to monopositive cations $ N_{2}^{+} $ and $ O_{2}^{+} $ respectively. Which is incorrect?
One Faraday of electricity is passed through molten $Al_2O_3$ aqueous solution of $CuSO_4$ and molten $NaCl$ taken in three different electrolytic cells connected in series. The mole ratio of $Al,Cu$ and $Na$ deposited at the respective cathode is
The colourless gas that turns brown in air is
Why do calcium ions makes water hard but sodium ion does not?
The $d$ and $l$ enantiomers of an optically active compound differ in
Formation of methyl tertiary butyl ether by the reaction of sodium tertiary butoxide and methyl bromide involves
German silver is an alloy of
Faraday's constant is defined as
The thermal decomposition of a molecule shows first order kinetics. The molecule decomposes 50% in 120 min. How much time it will take to decompose 90%?
The secondary precursors of photochemical smog are
The complex $[CoF_{6}]^{4-}$ is
$IUPAC$ name of the complex $K_{3}\left[A l\left(C_{2} O_{4}\right)_{3}\right]$ is
Dual behaviour of matter was proposed by
Which one of the following forms propanenitrile as the major product?
Zeolite used to soften hardness of water is, hydrated
$25.3 \, g$ of sodium carbonate, $Na_2CO_3$ is dissolved in enough water to make $250 \, mL$ of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, $Na^+$ and carbonate ions,$CO^{2-}_3$ are respectively (Molar mass of $Na_2CO_3 = 106 \, g \, mol^{-1}$)
Volume of a gas at NTP is $ 1.12\times {{10}^{-7}}c{{m}^{3}} $ . The number of molecules in it is
Why do most chemical reaction rates increases rapidly as the temperature rises?
Pollution is