List of top Questions asked in AP ECET

Which type of rock is formed from cooling Lava or Magma?
The Earth's core is primarily composed of
Which of the following is a Metamorphic rock?
The monomer involved in the formation of polystyrene is
We can overcome the undesirable properties of natural rubber by heating natural rubber with
Liquefied petroleum gas (LPG) mainly contains
Greenhouse effect is caused by
Which compound is mainly responsible for the depletion of ozone layer?
What is the degree of hardness in ppm of a sample containing \(19\text{ mg}\) of \(MgCl_2\) molecular weight \(=95\) in \(2\text{ kg}\) water sample? Express it in terms of equivalents of \(CaCO_3\).
Identify the pair of chlorides responsible for permanent hardness of water.
The cell formed in bent pipes is an example of
Tarnishing of silver is due to formation of
Which of the following is not a co-polymer?
In the removal of permanent hardness of water by permutit process, \(Na^+\) ions of permutit are exchanged with which ions of water?
Aqueous solution of which of the following does not act as electrolyte?
Number of coulombs corresponding to \(1\text{ mol}\) of electrons approximately is equal to
The amount of silver in mg deposited when \(9.65\) coulombs of electricity is passed through an aqueous solution of silver nitrate is \(\left(Ag=108u,\ 1F=96500\text{ C mol}^{-1}\right)\)
The standard electrode potentials of Zn, Ag and Cu are \(-0.76\), \(+0.80\) and \(+0.34\text{ V}\) respectively. Identify the correct statement from the following.
In which of the molecules lone pair, bond pair of electrons ratio is \(2:3\)?
How many moles of urea is present in \(250\text{ ml}\) of \(0.2M\) solution of it?
\(x\text{ ml}\) of \(0.1M\) NaOH solution is diluted with distilled water to get \(250\text{ ml}\) of \(0.01M\) solution. The value of \(x\) in ml is
\(3\times10^{22}\) molecules of \(Na_2CO_3\) molecular weight \(=106\) present in \(500\text{ ml}\) of solution. The normality of the solution formed is \(\left(N=6\times10^{23}\text{ mol}^{-1}\right)\)
Identify the pair containing only Lewis acids.
\(4\text{ g}\) of NaOH is dissolved in \(1.0\text{ L}\) solution. The pH of solution is
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