List of top Chemistry Questions asked in AP EAPCET

The number of extensive and intensive properties in the following list is respectively: Mass, temperature, pressure, enthalpy, heat capacity, internal energy, density
For the reaction $2A(g) + B(g) \rightarrow 2C(g)$, if $\Delta U^\circ = -8.80$ kJ mol$^{-1}$ and $\Delta S^\circ = -50$ J K$^{-1}$ mol$^{-1}$ at 300 K, the correct statement is:
If the work done by 2 mol of an ideal gas during isothermal reversible expansion from 5 L to 50 L is -189.1 L atm at constant pressure, the temperature of the gas (in °C) is
If \( \Delta G \) and \( \Delta S \) for the reaction \( A(g) \to B(g) + 2C(g) \) at 2000 K are -40 kJ mol$^{-1}$ and 0.22 kJ K$^{-1}$ mol$^{-1}$, respectively, the change in internal energy for the same reaction approximately (in kJ mol$^{-1}$) is?
If the enthalpy and entropy change for a reaction at 298 K are -145 kJ mol$^{-1}$ and -650 J K$^{-1}$ mol$^{-1}$ respectively, which one of the following statements is correct?

Basicity order of the following amines in aqueous medium
i) N-Methylaniline i
i) N, N-Dimethylaniline 
iii) Aniline

A first-order reaction has the rate constant of \(1.15 \times 10^{-3} \, \text{s}^{-1}\). The time required to reduce 10 g of reactant to 6 g is \(x \times 10^2\) sec. What is the approximate value of \(x\)?
Which of the polymer is used in the controlled release of drug?
1.06 g of Na$_2$CO$_3$ (molar mass = 106 g mol$^{-1}$) is dissolved in 500 g water. What is its molality?
Identify the correct statements from the following
I. Brass is an alloy of copper and nickel
II. Bronze is an alloy of copper and zinc
III. German silver is an alloy of copper, zinc and nickel
IV. Brass is an alloy of copper and zinc
If the osmotic pressure of cane sugar solution is 2.46 atm at 27°C, then what is the concentration (in mol L\(^{-1}\)) of the solution (R = 0.0821 L atm mol\(^{-1}\) K\(^{-1}\))
0.5g of non-volatile solute is added to 39g of Benzene. Then vapor pressure of solution is (vapor pressure of pure Benzene is 0.850 torr)
The energy (in J) released when an excited electron of 5$^{\text{th}}$ orbit of hydrogen atom returns to its ground state is
Which of the following drug is used on diseased skin surface?

Which of the following exhibits optical isomerism?

The sum of oxygen atoms in the formulae of peroxysulphuric acid and pyrosulphuric acid is
Two alkali halide salts, \[ \text{ACl} \] and \[ \text{BCI} \] gave crimson red and violet in their flame test respectively. A and B are respectively
If standard molar enthalpy change and standard molar internal energy change measured in bomb calorimeter are equal, which one of the following statements is correct?
Which of the following aqueous solutions has the highest osmotic pressure?
The correct order of bond angles of the following is
I. \( \text{H}_2\text{O} \)
II. \( \text{NH}_3 \)
III. \( \text{CH}_4 \)
IV. \( \text{SO}_2 \)
The minimum number of quantum numbers required to specify an orbital in an atom is
Among the following the appropriate reactants for the preparation of 1–ethyl cyclohexanol are
DDT is
Observe the following reaction \[ \text{a} \, \text{P}_4(s) + \text{b} \, \text{OH}^-(aq) + \text{H}_2\text{O}(l) \rightarrow \text{c} \, \text{PH}_3(g) + \text{d} \, \text{H}_2\text{PO}_4^-(aq) \] a, b, c and d are respectively
Match the following
List-I (Elements)
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Noble gases
List-II (Valence shell Configuration)
I. \( ns^2 np^6 \)
II. \( ns^2 np^5 \)
III. \( ns^2 \)
IV. \( ns^1 \)