List of top Chemistry Questions asked in AP ECET Chemical Engg

Number of coulombs corresponding to \(1\) mol of electrons approximately is equal to

\(4\) g of NaOH is dissolved in \(1.0\) L solution. The pH of solution is

Identify the pair containing only Lewis acids.

\(3\times 10^{22}\) molecules of \(Na_2CO_3\) \((\text{molecular weight}=106)\) are present in \(500\) ml of solution. The normality of the solution formed is \((N_A=6\times 10^{23}\,mol^{-1})\)

\(x\) ml of \(0.1\,M\) NaOH solution is diluted with distilled water to get \(250\) ml of \(0.01\,M\) solution. The value of \(x\) in ml is

How many moles of urea is present in \(250\) ml of \(0.2\,M\) solution of it?

In which of the molecules is the lone pair : bond pair of electrons ratio \(2:3\)?

Consider the elements with atomic numbers \(Z=8,9,11,19\) and \(20\). The number of ionic compounds possible with the elements having these atomic numbers is

If \(n,l,m\) and \(s\) represent the symbols of quantum numbers, the impossible quantum number set for the electron in terms of \(n,l,m\) and \(s\) respectively is

The number of orbitals present in \(d\)-subshell is

The de Broglie wavelength associated with a particle of momentum \(p\) is