List of top Chemistry Questions asked in KCET

Which of the following gases has the highest value of $rms$ velocity at $298\, K$?
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
A group of atoms can function as a ligand only when
An alkyl bromide $(X)$ reacts with Sodium in ether to form $4, 5$ -diethyl octane, the compound X is
Acetone and Propanal are
Which of the following is not a colligative property ?
The number of water molecules present in a drop of water weighing $0.018\, gm$ is
When limestone is heated, $CO_2$ is given off. The metallurgical operation is
Which of the following aqueous solutions will exhibit highest boiling point ?
Which one of the following is not correct ?
Alkali metals have negative reduction potential and hence they behave as
The number of optical isomers of the compound $CH_3-CHBr-CHBr- COOH$ is
Empirical formula of a compound is $CH_2O$ and its molecular mass is $90$, the molecular formula of the compound is
In Buna- $S$, the symbol $'Bu'$ stands for