List of top Chemistry Questions asked in KCET

The set of quantum numbers for the outermost electron for copper in its ground state is ___________
Peroxide ion ___________ a) is diamagnetic b) has five completely filled antibonding molecular orbitals c) is isoelectronic with neon d) has bond order one. Which one of these is correct?
The standard emf of a galvanic cell involving $3$ moles of electrons in its redox reaction is $0.59 \,V$. The equilibrium constant for the reaction of the cell is
Molecules of a noble gas do not possess vibrational energy because a noble gas _________
The letter $'D'$ in $D-glucose$ signifies____
The condensation polymer among the following is
$5$ moles of $SO_2$ and $5$ moles of $O_2$ are allowed to react. At equilibrium, it was found that $60\% $ of $SO_2$ is used up. If the partial pressure of the equilibrium mixture is one atmosphere, the partial pressure of $O_2$, is
The one which decreases with dilution is
The characteristic not related to alkali metal is
The ore that is concentrated by Froth Floatation process is
In electrophillic aromatic substitution reaction, the nitro group is meta directing because it
A covalent molecule $AB_3$ has pyramidal structure. The number of lone pair and bond pair electrons in the molecule are respectively
An organic compound on heating with $CuO$ produces $CO_2$, but no water. The organic compound may be
Ribose sugar is present in
IUPAC name of $(CH_3)_3CCl$
The rate equation for a reaction : $A \rightarrow B$ is $r = K[A]^\circ$. If the initial concentration of the reactant is a mol $dm^{-3}$, the half life period of the reaction is
Excess of carbon dioxide is passed through $50 \,mL$ of $0.5\, M$ calcium hydroxide solution. After the completion of the reaction, the solution was evaporated to dryness. The solid calcium carbonate was completely neutralised with $0.1\, N$ Hydrochloric acid. The volume of Hydrochloric acid required is (At. mass of calcium = $40$)
The oxidation state of $Fe$ in the brown ring complex : $[Fe(H_2O)_5 NO]SO_4$ is
The incorrect statement in respect of Chromyl chloride test is

Argon is used:

The reaction involved in the oil of winter green test is salicylic acid ${->[{\Delta}][{\text { Conc. } H _{2} SO _{4}}]}$ product. The product is treated with $Na _{2} CO _{3}$ solution. The missing reagent in the above reaction is
The carbon-carbon bond length in Benzene is
$ {CH_3COOH ->[LiA/H_4] X ->[Cu][300 ^{\circ}C] Y ->[dilute][NaOH] Z}$ In the above reaction $Z$ is
A compound of $'A'$ and $'B'$ crystallises in a cubic lattice in which the $'A'$ atoms occupy the lattice points at the corners of the cube. The $'B'$ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is
A 6% solution of urea is isotonic with