List of top Chemistry Questions asked in KCET

Given below are the atomic masses of the elements: 

Which of the following doesn't form triad? 
 

The change in hybridisation (if any) of the 'Al' atom in the following reaction is
AlCl3 + Cl- → AlCl4-

Match List-I with List-II and select the correct option: 

The electronic configuration of X and Y are given below:
X: 1s22s22p63s23p3
Y: 1s22s22p63s23p5
Which of the following is the correct molecular formula and type of bond formed between X and Y?

Match List-I with List-II and choose the correct answer from the options given below. 

In the following pairs, the one in which both transition metal ions are colourless is
Select the INCORRECT statement/s from the following:
Half-life of a first order reaction is 20 seconds and initial concentration of reactant is 0.2M. The concentration of reactant left after 80 seconds is
Match the following and select the correct option for the quantity of electricity, in Cmol\(^{-1}\), required to deposit various metals at the cathode.
For a given half cell, \( \text{Al}^{3+} + 3e^- \rightarrow \text{Al} \) on increasing the concentration of aluminium ion, the electrode potential will
Catalysts are used to increase the rate of a chemical reaction. Because it
180 g of glucose, \(C_6H_{12}O_6\), is dissolved in 1 kg of water in a vessel. The temperature at which water boils at 1.013 bar is ______ (given, \(K_b\) for water is 0.52 K kg mol\(^{-1}\)). Boiling point for pure water is 373.15 K
Among the following 0.1 m aqueous solutions, which one will exhibit the lowest boiling point elevation, assuming complete ionization of the compounds in solution?
The equilibrium constant at 298 K for the reaction \( A + B \rightleftharpoons C + D \) is 100. If the initial concentrations of all the four species were 1 M each, then equilibrium concentration of D (in mol/L) will be
Which one of the following reactions has
\(\Delta H = \Delta U\)?
According to the Heisenberg's Uncertainty principle, the value of \(\Delta v \cdot \Delta x\) for an object whose mass is \(10^{-6}\) kg is
Given below are two statements.
Arrange the following compounds in their decreasing order of reactivity towards nucleophilic addition reaction.
Which of the following reaction/s does not yield an amine?
Which of the following has the most acidic Hydrogen?
Statement-I: Reduction of ester by DIBAL-H followed by hydrolysis gives aldehyde.
Statement-II: Oxidation of benzyl alcohol with aqueous KMnO₄ leads to the formation of benzaldehyde.
Among the above statements, identify the correct statement.
Which of the following reagents are suitable to differentiate Aniline and N-methylaniline chemically?
Phenol can be distinguished from propanol by using the reagent
Oxidation of Toluene with chromyl chloride followed by hydrolysis gives Benzaldehyde. This reaction is known as
Ethyl alcohol is heated with concentrated sulphuric acid at 413 K (140°C). The major product formed is