List of top Chemistry Questions asked in KCET

Incorrectly matched pair is:
The oxidation number of nitrogen atoms in $NH_4NO_3$ are
Which of the following is NOT a green house gas?
Which of the following is not a greenhouse gas?
The metal that products $H_2$ with both dil $HCl$ and $NaOH (aq)$ is
Which of the following pair of solutions is isotonic ?
Which of the following is NOT a pair of functional isomers?
Give: E0Mn+7|Mn+2 = 1.5 V and E0Mn+4|Mn+2 = 1.2 V, then E0Mn+7|Mn+4 is
Match the following pKa values:
Eutrophication causes
According to the VSEPR theory, the shape of $ClO_3^{-}$ would be
1 L of 2 M CH3COOH is mixed with 1 L of 3M C2H5OH to form an ester. The rate of the reaction with respect to the initial rate when each solution is diluted with an equal volume of water will be
Relative lowering of vapour pressure of a dilute solution of glucose dissolved in 1 kg of water is 0.002. The molality of the solution is
Addition of excess of AgNO3 to an aqueous solution of 1 mole of PdCl2. 4NH3 gives 2 moles of AgCl. The conductivity of this solution corresponds to
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?