List of top Chemistry Questions asked in AP EAPCET

Identify the correct statements from the following:
I. At 0 K, the entropy of pure crystalline materials approaches zero.
II. Entropy for the process $ \text{H}_2\text{O(l)} \rightarrow \text{H}_2\text{O(g)} $ decreases.
III. Gibbs energy is a state function.
The energy required (in eV) to excite an electron in a hydrogen atom from the ground state to the third state is:

In the Lewis dot structure of carbonate ion ($ \text{CO}_3^{2-} $), what are the formal charges on oxygen atoms 1, 2, and 3 respectively?

An element $ X $ (atomic number 13) forms a complex of the type $[XCl(H_2O)_5]^{2+}$. What are the covalency and oxidation state of $ X $ in this complex?
In which of the following, oxides of three elements X, Y, and Z are arranged in increasing order of acidic nature? Their electronic configurations are:
X: $[Ne] 3s^2 3p^1$, \quad Y: $[Ne] 3s^2 3p^3$, \quad Z: $[Ne] 3s^2$
Which of the following is formed when SO3 is absorbed by concentrated H2SO4?
The crystal field theory is successful in explaining which of the following?
A reaction gas mixture contains 50%, 30%, 20% of A, B and C by volume respectively. The mixture undergoes the following reactions: \[ \text{(i) } A + 2B \rightarrow P_1 \\ \text{(ii) } 2P_1 + 3C \rightarrow P_2 \] Choose the correct answer if the reaction completes.

Which of the following are extensive properties?
\(Heat capacity \quad (B) Entropy \quad (C) Gibbs Energy \quad (D) Concentration \quad (E) Vapour pressure\)

Match the Following: 

ProcessOptionExpression
A. Isothermal processiv\( W = -nRT \ln\left( \frac{V_f}{V_i} \right) \)
B. Adiabatic processiii\( W = \Delta U \)
C. Isobaric processii\( W = -P \times \Delta V \)
D. Isochoric processi\( q = \Delta U \)
Identify the major product of the following reaction: bromination of aniline (Br2} + NaOH).
bromination of aniline (Br2 + NaOH).
Identify the major product of the following reaction (Zn-Hg/HCl reduction).
Zn-Hg/HCl reduction
Finkelstein reaction is used for the synthesis of
Which among the following will have highest density?
An aryl carboxylic acid on treatment with sodium hydrogen carbonate liberates a gaseous molecule. Identify the gas molecule liberated.
Pernicious anemia is caused due to deficiency of which vitamin?
Which of the following vitamins cannot be stored in the body?
Identify the major product (Y) from the following reaction.
major product (Y) from the following reaction
The time required for completion of 93.75% of a first order reaction is $x$ minutes. The half-life of it (in minutes) is
38.6 A of current is passed for 100 s through aqueous CuSO4 using platinum electrodes. Find mass of Cu deposited and volume of gas evolved (Cu = 63.54 g mol-1)
In the reaction of phosphorous with conc. HNO3, the oxidized and reduced products respectively are
The macromolecular colloids of the following are:
Assertion (A): Animal skins are colloidal in nature.
Reason (R): Animal skin has positively charged particles.
Assertion (A): Transition metals and their complexes show catalytic activity.
Reason (R): The activation energy of a reaction is lowered by the catalyst.
The major product of the following reaction is (Grignard Reagent with D2}O)
Grignard Reagent with D2O