List of top Chemistry Questions asked in KCET

The reaction in which $\Delta H > \Delta U$ is
The mass of AgCl precipitated when a solution containing 11.70 g of NaCl is added to a solution containing 3.4 g of AgNO3 is [Atomic mass of Ag = 108, Atomic mass of Na = 23]
A non-volatile solute, ?A? tetramerises in water to the extent of 80%. 2.5 g of ?A? in 100 g of water, lowers the freezing point by 0.3 ?C. the molar mass of ? in mol L-1 is (Kf for water = 1.86 K kg mol-1)
An aqueous solution of CuSO4 is subjected to electrolysis using inert electrodes. The pH of the solution will
Cis-1, 4-polyisoprene is called
Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are 1. $Fe_{2}O_{3} + 3CO \to 2Fe + 3CO_{2}$ 2. $FeO + SiO_{2} \to FeSiO_{3}$ 3. $Fe_{2}O_{3} + 3C \to 2Fe + 3CO$ 4. $CaO + SiO_{2} \to CaSiO_{3}$
The number of moles of electron required to reduce 0.2 mole of Cr2O-27 to Cr+3
One mole of $O_2$ gas is heated at constant pressure starting at $27^o$C. How much energy must be added to the gas as heat to double its volume?
Oxidation state of copper is +1 in
Which cleansing agent gets precipitated in hard water?
Dead burnt plaster is
Gold sol is not a
The IUPAC name of $[Co(NH_3)_4 Cl(NO_2)]Cl$ is
The electronic configuration of transition element "X", is +3, oxidation state is $ {[Ar] 3d^5}$. What is its atomic number ?
Among the following, the branched chain polymer is
$[Fe(NO_2)_3 Cl_3]$ and $[Fe(O - NO)_3 \, Cl_3]$ shows
The reagent 'X' used for the following reaction is
The value of rate constant of a pseudo first order reaction
At a particular temperature, the ratio of molar conductance to specific conductance of 0.01 M NaCl solution is
Acidity of $BF_3$ can be explained on which of the following concepts ?
Which of the following aqueous solutions should have the highest boiling point ?
Very pure $N_2$ can be obtained by
Isotonic solutions are solutions having the same
The charge required for the reduction of $1$ mol of $MnO_4^-$ to $MnO_2$ is
$1.0 \, g$ of Mg is burnt with 0.28 g of $O_2$ in a closed vessel. Which reactant is left in excess and how much ?