List of top Chemistry Questions asked in AP ECET EIE

The correct structure of neoprene rubber is

In part of the atmosphere ozone layer is present.
Rust is chemically
The monomer of Teflon is X. The number of fluorine atoms in X is
Bakelite is an example of
Which of the following is NOT regarded as a primary fuel?
pH of acid rain water is generally in the range of
With which of the following anions, $Mg^{2+}$ and $Ca^{2+}$ ions form salts responsible for permanent hardness of water?
Exhausted permutit is regenerated by washing with
$27.2$ mg of $CaSO_4$ and $2.4$ mg of $MgSO_4$ are present in a $2$ kg water sample. What is the total hardness of water (in ppm) in terms of equivalents of $CaCO_3$? (molecular weight of $CaSO_4 = 136$ & molecular weight of $MgSO_4 = 120$)
If the standard reduction potentials of A, B, C are respectively $0.68\text{V}$, $-2.54\text{V}$ and $-0.50\text{V}$, then the order of their reducing power is
Statement I: The lower the pH greater is the corrosion.
Statement II: Electrochemical Corrosion always occurs at the anodic area.
At $25^\circ\text{C}$, ionic product ($K_w$) of $0.01\text{M HCl}$ solution is
Which of the following combinations give a buffer solution?
A current of $0.5\text{ amp}$ is passed through molten $AlCl_3$ for $96.5\text{ seconds}$. The volume of $Cl_2$ gas liberated at STP at anode (in ml) is ($Cl = 35.5\text{ u}$) ($1F = 96500 \text{ C mol}^{-1}$)
The amount of substance deposited due to passage of $1\text{F}$ of electricity is called
What is the emf of the cell? $Sn|Sn^{2+} (1\text{M}) || Ag^+ (1\text{M}) | Ag$ [Given $E^0_{Sn^{2+}/Sn} = -0.14\text{V}$ and $E^0_{Ag^+/Ag} = +0.80\text{V}$]
How many grams of $NaOH$ is required to prepare $5.0$ litre of $0.1\text{ N}$ solution? (Given: At. wt: $H=1$, $O=16$, $Na=23$)
A gaseous mixture contains $8\text{ g}$ of oxygen, $14\text{ g}$ of nitrogen and $8\text{ g}$ of hydrogen. Total number of molecules present in the gaseous mixture is (Given: At. wt: $H=1$, $N=14$, $O=16$, $N_A = 6 \times 10^{23} \text{ mol}^{-1}$)
The equivalent weight of which of the following is the highest?
In the elements with atomic number $Z=1$ to $Z=20$, how many of them have no unpaired electrons in their ground state?
Which of the following is not a property of covalent compounds?
The sum of covalent bonds in $H_2$, $N_2$ and $HCl$ is
The quantum number which describes the shape of an atomic orbital is indicated by the symbol
"No two electrons in an atom can have the same set of four quantum numbers". This is known as