List of top Chemistry Questions asked in AP EAPCET

Match the following:

CompoundReaction Type
A. CH2=CH2I. Electrophilic substitution reaction
B. CH3COOCH3II. Nucleophilic substitution reaction
C. C6H6III. Electrophilic addition reaction
D. CH3ClIV. Nucleophilic addition reaction

The decreasing order of p$K_b$ of the following aromatic amines is

The correct equation for $K_c$ for the following reaction is:
A(l) + B(g) ⇌ C(g)
At $T$ (K), a gas obeys kinetic gas equation. At this temperature, for a given number of molecules, PV = x. If the number of molecules is doubled at $T$, then the value of PV would be

Match the following (Types of Hydrides vs. Group Elements):

TypeGroup Elements
A. Electron-deficientI. Group 13
B. Electron-richII. Group 15
C. Electron-preciseIII. Group 14
D. InterstitialIV. Group 4 (d-block metals)
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:
On complete combustion of one mole of butane according to the equation: C$_4$H$_{10}$ + $\dfrac{13}{2}$ O$_2$ → 4CO$_2$ + 5H$_2$O, the standard enthalpy of the reaction is –2879 kJ/mol. If $\Delta H_f^\circ$ [CO$_2$] = –394, $\Delta H_f^\circ$ [H$_2$O] = –286, the standard enthalpy of formation of butane is
An organic compound containing C, H and N has 72.7% C, 13.1% H and 14.1% N. Its empirical formula is
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$^{-1}$)
Work function of Cu metal is 4.8 eV. What is the approximate wavelength of incident radiation required to eject electrons from its surface? ($h = 6.626 \times 10^{-34}$ Js)
In normal oxides of group 13 elements, the ratio of element to oxygen is
The correct order of bond angles of H$_2$S, NH$_3$, BF$_3$, and SiH$_4$ is
The hybridization and number of lone pair of electrons on central atom of SF$_4$ respectively are
Which of the following is not correct with the property mentioned against them?
The number of radial and angular nodes of 4f orbital respectively are

Match the following.

Below shown molecules are

In which of the following, drug class is correctly matched with the criteria of drug classification?
Identify the correct statement related to amino acids
In which of the following chain termination step is absent?
Identify the correct statement
The sum of oxygen atoms in the formulae of peroxysulphuric acid and pyrosulphuric acid is
The process of converting a precipitate into colloidal solution is known as
What is the depression of freezing point, when mole fraction of non-electrolyte solute in aqueous solution is 0.01? ($ K_f $ of $ \text{H}_2\text{O} = 1.86 \, \text{K kg mol}^{-1} $)
In a $ A_xB_y $ crystal structure, $ A^{+y} $ ions occupy all the tetrahedral voids and $ B^{-x} $ ions make BCC unit cell. What is the formula of the compound?