List of top Questions asked in AP EAPCET

Elemental sulphur is known to exist as S$_8$ (in vapor state) at 1000 K. At this temperature, if 1 g of sulphur occupies 2.62 L, its pressure (in atm) is (Assume S$_8$ vapors follow the ideal gas equation. Given, R = 0.082 L atm mol$^{-1}$ K$^{-1}$)
The element with atomic number 118 will be:
The energy (in J) released when an excited electron of 5$^{\text{th}}$ orbit of hydrogen atom returns to its ground state is
From the following, number of fat soluble and water soluble vitamins respectively are A D C B$_1$ K B$_6$
At T (K) and pressure P, the diffusion rate of an ideal gas is 120 mL min$^{-1}$. What is the time taken (in sec.) for 3000 mL of this gas for diffusion at the same temperature and pressure?
Which of the following reactions are endothermic and spontaneous?
The correct order of melting points of Al, Ga, In is:
The graph drawn between \( \log \left( \frac{x}{m} \right) \) and \( \log (p) \) is shown below with intercept OA. What is the value of \( \frac{x}{m} \) at a pressure of 0.3 atm? (log 2 = 0.30, log 3 = 0.477)
Which one of the following options is correct for \[ q = -ve, \, w = +ve \{ (where \(q\) and \(w\) are heat and work respectively)} \]
Given below are two statements Assertion (A): The enthalpy of formation of graphite is taken as zero. Reason (R): Graphite is thermodynamically most stable allotrope of carbon. The correct answer is
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
At 300 K, the compressibility factor of 1 mole of a gas is 1.1. Its pressure is 2.706 atm. What is its volume in L? (Given R = 0.082 L atm mol$^{-1}$ K$^{-1}$)
At T(K), the equilibrium constant for the reaction \( A (g) \rightleftharpoons B (g) \) is \( K_c \). If the reaction takes place in the following form \( 2A(g) \rightleftharpoons 2B(g) \), its equilibrium constant is \( K'_c \). The correct relationship between \( K_c \) and \( K'_c \) is:
Two statements are given below
Statement I: Chlorobenzene on nitration gives 1-chloro-4-nitrobenzene as major product
Statement II: Chlorobenzene undergoes nitration slowly than benzene
Identify the correct answer
One mole of aqueous $ \text{SO}_3^{2-} $ is completely reacted with 2 moles of $ \text{Br}_2 (l) $. What is the oxidation state (s) of S in the product formed?

Match the following

The spin-only magnetic moment of ${[MnBr4]^2-}$ is 5.9 BM. The geometry of the complex and x respectively are
An organic compound with molecular formula C$_6$H$_6$O gives an orange-red precipitate with 2,4-dinitrophenylhydrazine. It gives negative Tollens' test. The product of it with hydroxylamine is
What are ‘X’ and ‘Y’ respectively in the following reactions?

The formula of tris (ethane -1,2- diamine) cobalt (III) sulphate is:
In which of the following, orbitals are correctly arranged in the increasing order of their energies?
The P − P bond angle in P4 and S − S bond angle in cyclo S8 molecule are respectively
In nucleoside, the base is attached to which position of the sugar molecule?
The alkaline earth metal with lowest density is