List of top Chemistry Questions asked in KCET

According to the VSEPR theory, the shape of $ClO_3^{-}$ would be
Eutrophication causes
Which of the following orders are correct against the property given? I) dipole moment : $NF_3 > NH_3 >BF_3$ II) Covalent bond length : $C - O > N - O > O - H$ III) Bond order : $C_2 > B_2 > He_2$
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)
Cis-1, 4-polyisoprene is called
An aqueous solution of CuSO4 is subjected to electrolysis using inert electrodes. The pH of the solution will
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 ?
Very pure $N_2$ can be obtained by
Which of the following aqueous solutions should have the highest boiling point ?