List of top Chemistry Questions asked in KCET

A white crystalline salt $A$ reacts with dilute $HCl$ to liberate a suffocating gas $B$ and also forms a yellow precipitate. The gas $B$ turns potassium dichromate acidified with dilute $H_2SO_4$ to a green coloured solution $C, A, B$ and $C$ are respectively

Which one of the following does not involve coagulation?

A mixture of $CaCl_2$ and $NaCl$ weighing $4.44\, g$ is treated with sodium carbonate solution to precipitate all the calcium ions as calcium carbonate. The calcium carbonate so obtained is heated strongly to get $0.56\, g$ of $CaO$. The percentage of $NaCl$ in the mixture is (Atomic mass of $Ca = 40)$

In Kjeldahl's method, ammonia from $5\, g$ of food neutralizes $30 \,cm^3$ of $0.1\, N$ acid. The percentage of nitrogen in the food is

In the electrolytic refining of Zinc ,.................

In alkaline medium, glycine exists predominantly as

Reaction of chloroform with $KOH$ in the presence of a primary aromatic amine is called

Which one of the following conversions involve change in both hybridization and shape?

For the reversible reaction $A_{(s)}+B_{(g)} \rightleftharpoons C_{(g)}+D_{(g)}: \Delta G^{0}=-350 kJ .$ Which one of the following statements is true?

The sugar present in milk is__________

Reaction of methyl bromide with aqueous sodium hydroxide involves

The correct IUPAC name of $K_2[Ni(CN)_4]$ is _______

The amount of heat evolved when $500 \,cm^3$ of $0.1 \,M \,HCl$ is mixed with $200\, cm^3$ of $0.2\,M \,NaOH$ is _______

The empirical formula of a non-electrolyte is $CH_2O$. A solution containing $6 \,g$ of the compound exerts the same osmotic pressure as that of $0.05\, M$ glucose solution at the same temperature. The molecular formula of the compound is

The spin only magnetic moment of $Mn^{+4}$ ion is nearly____

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 characteristic not related to alkali metal is

The ore that is concentrated by Froth Floatation process is

The one which decreases with dilution is