List of top Chemistry Questions asked in KEAM

The molarity of an aqueous solution containing 0.4g of NaOH (molar mass=40g/mol) in 250mL of a solution is
An organic compound A with the molecular formula C$_6$H$_4$NO$_2$Br is treated with magnesium in dry ether gives an organometallic compound which on treatment with CO$_2$ (dry ice) gives compound B. B on hydrolysis gives C. The name of the products A and C are
The decreasing order of acid strength of the following is} \[ \text{FCH}_2\text{COOH,\ \ NCCH}_2\text{COOH,\ \ NO}_2\text{CH}_2\text{COOH,\ \ ClCH}_2\text{COOH} \]
Match the following:
Two forms of D-glucopyranose, are called
Which of the following statement is incorrect with Williamson synthesis?
An organic liquid A containing C, H and O with p$K_a$ value 15.9, used in polishing woods, on heating with concentrated sulphuric acid gives a gaseous product B with the empirical formula CH$_2$. B decolourises bromine water as well as dilute permanganate solution. The compound A and B are respectively
When phenol is treated with excess of bromine water, it gives
Which of the following is used in the production of freon refrigerant R-22?
Which is the reagent used for the following conversion?
The type of isomerism exhibited by the complexes [Co(NH$_3$)$_5$(SO$_4$)]Br and [Co(NH$_3$)$_5$Br]SO$_4$ is
The highest possible oxidation states of uranium and plutonium, respectively, are
The ligand which is used in the treatment of lead poisoning is
Which of the following compound is aromatic?
The compound which gives the most stable carbocation in elimination reaction is
Which of the following statement is incorrect?
The rate constants of a reaction at $300,K$ and $400,K$ are $1.5,s^{-1}$ and $3,s^{-1}$ respectively. The $E_a$ value is [$\log 2 = 0.3010,\ 2.303R=19,J,K^{-1}mol^{-1}$]
The compound which has the highest freezing point (in K) is
Chlorine has oxidation number $+7$ in
The acid which has the highest ionization constant ($K_a$) at $298,K$ is
Which of the following statement is incorrect about the standard electrode potential?
Which of the following statement is incorrect about the periodic trend?
Which of the following set of molecules are having zero dipole moment?
Which of the following reaction has the positive value of standard enthalpy of reaction?
The correct increasing order of average bond length for C=C, N=O, C-C, N-O is