List of top Chemistry Questions asked in KEAM

The titanium (atomic number 22) compound that does not exist is

Which one of the following is a non-benzenoid aromatic compound?

The rate of the reaction $ A\xrightarrow{{}} $ products, at the initial concentration of $ 3.24\times {{10}^{-2}}M $ is nine times its rate at another initial concentration of $ 1.2\times {{10}^{-3}}M $ . The order of the reaction is

Methyl bromide reacts with $AgF$ to give methyl fluoride and silver bromide. This reaction is called

$ {{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 secondary precursors of photochemical smog are

Zeolite used to soften hardness of water is, hydrated

Pick out the incorrect statement from the following

Select the incorrect statement.

Which of the following concentration terms are independent of temperature ?

The shape of $ Xe{{F}_{4}} $ molecule and hybridisation of xenon in it are

The heat of atomisation of $PH_3(g)$ and $ P_2H_4(g)$ are $ 954 kJ\, mol^{-1}$ and $1485\, kJ\, mol^{-1}$ respectively .The P-P bond energy in $kJ\, mol^{-1}$ is

The resistance of a galvanometer is $ 50\,\Omega $ . and it shows full scale deflection for a current of $1 \,mA$. To convert it into a voltmeter to measure $1 \,V$ and as well as $10\, V$ (Refer circuit diagram) the resistances $ {{R}_{1}} $ and $ {{R}_{2}} $ respectively are

Which one of the following impurities present in colloidal solution cannot be remove by electrodialysis?

Of the isomeric hexanes, the isomers that give the minimum and maximum number of monochloro derivatives are respectively

The radius of the first Bohr orbit of hydrogen atom is $ 0.529\overset{\text{o}}{\mathop{\text{A}}}\, $ . The radius of the third orbit of $ {{He}^{+}} $ will be

The hardness of water sample containing $ 0.002 $ mole of magnesium sulphate dissolved in a litre of water is expressed as

The equlibrium constant for the reaction $ 2N{{O}_{2}}(g) \rightleftharpoons 2NO(g)+{{O}_{2}}(g) $ is $ 2\times {{10}^{-6}} $ at $ 185{}^\circ C $ . Then the equilibrium constant for the reaction, $ 4NO(g)+2{{O}_{2}}(g) \rightleftharpoons $ $ 2N{{O}_{2}}(g) $ at the same temperature would be

Which one of the following statements about amino acids is not true?

Which of the properties of interstitial hydrides is correct ?

$4\, g$ of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave $5\, g$ of its oxide. The equivalent weight of copper is :

To which of the following mixtures Dalton's law of partial pressures is not applicable ?

Which carbon is more electronegative?

Which of the following is not a function of proteins?