List of top Chemistry Questions asked in KEAM

The aldehyde that does not respond to Fehling’s test is
Reimer-Tiemann reaction using CHCl3 and aq.NaOH involves the conversion of phenol into
An organic compound is heated with \(Na_2O_2\) then boiled with \(HNO_3\). The solution is then treated with ammonium molybdate. The yellow precipitate obtained is due to the presence of the element
One mole of an alkene on ozonolysis gives two moles of propanone. What is the alkene?
Choose the Swarts reaction in the following:
CH3I cannot be prepared by direct iodination of methane as the reaction is slow and reversible. However, it can be prepared by carrying out the reaction in the presence of
The IUPAC name of the following alkane is \(CH_3-CH_2-CH(C_2H_5)-CH_2-CH(CH_3)-CH_2-CH_3\)
Which of the following is a gas at 300K?
The substance used to convert sodium chromate to sodium dichromate in one of the stages of preparation of potassium dichromate is
The first transition series metal that exhibits only +2, +3, +4 and +6 oxidation states is
The calculated magnetic moment of two dipositive ions of 3d series element is 4.9 BM. The ions are
\([Ag(NCS)_2]^-\) and \([Ag(SCN)_2]^-\) are
The type of hybridisation of Co in \([CoF_6]^{3-}\) complex ion is
A first order reaction is 75% completed in 1000 s at 300 K. What is its half-life period at 300 K?
Which of the following aqueous non-electrolyte solution will produce the highest freezing point if 20g of the solute is dissolved in 1000g of water?
Which of the following is a first order reaction?
The limiting molar conductance for aqueous solution of CaCl\(_2\) at 298K is 271.6 S cm\(^2\) mol\(^{-1}\). If the limiting ionic conductance of Ca\(^{2+}\) ion at the same temperature is 119 S cm\(^2\) mol\(^{-1}\) what is the limiting ionic conductance of Cl\(^-\) ion?
Isotonic solutions have identical
The units of rate constants of two reactions I and II are respectively mol\(^{-1}\) L s\(^{-1}\) and mol L\(^{-1}\)s\(^{-1}\). Then,
Which of the following half-cell reaction has the most negative standard electrode potential?
The pH of an aqueous solution of weak mono acidic base is 11. What is the [H\(^+\)] of the solution? [pKw = 14]
Kc for the reaction A(g) + 2B(g) \(\rightleftharpoons\) C(g) + 2D(g) is 4.0 at 300 K. What is the value of K'c for the reaction, 2C(g) + 4D(g) \(\rightleftharpoons\) 2A(g) + 4B(g) at 300 K?
The mathematical statement of the first law of thermodynamics with the usual notation is
In which of the following compound oxygen is in -1 oxidation state?
Which of the following is an intensive property?