List of top Chemistry Questions asked in KCET

Intramolecular Hydrogen bonding is formed in

Excess of $PCl_5$ reacts with conc. $H_2SO_4$ giving

The function of potassium ethyl xanthate in froth floatation process is to make the ore

$100\, mL$ of $0.1\, M$ acetic acid is completely neutralized using a standard solution of $NaOH$.The volume of Ethane obtained at $STP$ after the complete electrolysis of the resulting solution is

Which one of the following is NOT formed when a mixture of methyl bromide and bromo benzene is heated with sodium metal in the presence of dry ether ?

Which of the following is NOT a characteristic of a covalent compound?

The correct set of four quantum numbers for the outermost electron of sodium ($Z = 11$) is

The vapour pressure of due to

The vapour pressures of two liquids $A$ and $B$ in their pure states are in the ratio of $1 : 2$. A binary solution of $A$ and $B$ contains $A$ and $B$ in the mole proportion of $1 : 2$. The mole fraction of $A$ in the vapour phase of the solution will be

A first order reaction is $60\%$ complete in $20$ minutes. How long will the reaction take to be $84\%$ complete ?

$20\, mL$ of methane is completely burnt using $50\, mL$ of oxygen. The volume of the gas left after cooling to room temperature is

The secondary valency of platinum in tetraamminedichloroplatinum $(IV)$ chloride is

The total number of electrons in $18\, ml$ of water (density $= 1\, g \,ml^{-1} $) is

Impossible orbital among the following is

The volume of $0.1\, M$ oxalic acid that can be completely oxidized by $20\, ml$ of $0.025 \, M \, KMnO_4$ solution is

Which of the following is a negatively charged bidentate ligand ?

The atomic number of cobalt is $27$. The $EAN$ of cobalt in $Na_3 [Co(NO_2)_4Cl_2]$ is

All colloidal dispersions have

The mass of a non-volatile solute of molar mass $40\, g \,mol^{-1}$ that should be dissolved in $114\, g$ of octane to lower its vapour pressure by $20 \%$ is

Benzylamine is a stronger base than aniline because

The $s$-block element used as a catalyst in the manufacture of Buna-$S$ rubber is

$5\, ml$ of $0.4\, N\, NaOH$ is mixed with $20\, ml$ of $0.1\, N\, HCl$. The $pH$ of the resulting solution will be

On adding which of the following, the pH of $20\, ml$ of $0.1\, N\, HCl$ will not alter ?

Saccharin, an artificial sweetner, is manufactured from

Which one of the following is NOT true regarding electromeric effect ?