List of top Chemistry Questions asked in KCET

Terylene is NOT a
A crystalline solid $XY_3$ has $ccp$ arrangement for its element $Y. X $ occupies
$1.78\, g$ of an optically active L-amino acid $(A)$ is treated with $NaNO_2/HCl$ at $0\,^\circ\,C$. $448\, cm^3$ of nitrogen was at $STP$ is evolved. A sample of protein has $0.25\%$ of this amino acid by mass. The molar mass of the protein is
The compound that reacts the fastest with sodium methoxide is
$50\,cm^3$ of $0.04 \,M \,K_2 Cr_2 O_7$ in acidic medium oxidizes a sample of $H_2S$ gas to sulphur. Volume of $0.03\, M$ $KMnO_4$ required to oxidize the same amount of $H_2S$ gas to sulphur, in acidic medium is
The IUPAC name of the complex ion formed when gold dissolves in aquaregia is
$10\, g$ of a mixture of $BaO$ and $ CaO$ requires $100 \, cm^3$ of $2.5\, M\, HCl$ to react completely. The percentage of calcium oxide in the mixture is approximately (Given : molar mass of $BaO \,= \,153$)
The acid strength of active methylene group in (I) $CH_3COCH_2COOC_2H_5$ (II) $CH_3COCH_2COCH_3$ (III) $C_2H_5OOCCH_2COOC_2H_5$ decreases as
For Freundlich isotherm a graph of log $\frac {x}{m}$ is plotted against $log\, P$. The slope of the line and its y-axis intercept, respectively corresponds to
Butylated hydroxy toluene as a food additive acts as
Which one of the following gives amine on heating with amide ?
Which of the following gases has the highest value of $rms$ velocity at $298\, K$?
The mass of $112 \, cm^3$ of $NH_3$ gas at $STP$ is
The ionisation energy of an electron in the ground state of helium atom is $24.6\, eV$. The energy required to remove both the electron is
Which of the following pairs are correctly matched? Reactants Products I. $Rx+AgOH (aq)$ RH II. $Rx+AgCN_{(alc)}$ RNC III. $Rx+KCN_{(alc)}$ RNC IV. $Rx+Na_{\text{(ether)}}$ R-R
4 g of a hydrated crystal of formula AxH$_2$O has 0.8 g of water. If the molar mass of the anhydrous crystal (A) is 144 g mol$^{-1}$, x value is
Meso compounds do not show optical activity because
Adsorption theory is applicable for
Which one of the following sets of ions represents the collection of isoelectronic species ?
The process of zone refining is used in the purification of
An example for a neutral buffer is
The stability of a Lyophobic colloid is due to
Which of the following cations will have minimum flocculation value for arsenic sulphide sol ?
Mesomeric effect involves
Hybridised states of carbon in Graphite and Diamond are respectively