List of top Chemistry Questions asked in AP EAPCET

3.1 g of a compound, 'X' (molar mass = 62 g mol$^{-1}$) is dissolved in 19.5 g of other compound, Y (molar mass = 78 g mol$^{-1}$). The ratio of mole fractions of X and Y in the solution is
For which of the following liquid mixtures $\Delta_{mixH = 0$ and $\Delta_{mix}V = 0$?}
Ag crystallizes in fcc lattice. What is the total number of tetrahedral voids present in 540 g of Ag metal? (N$_A$ = Avagadro number, Ag atomic weight = 108 g mol$^{-1}$)
Hydration enthalpy of which of the following ions is highest?
Match the following: List - I \quad (Type of hydride) \quad List - II \quad (Example) A) Electron precise \quad i) SiH$_4$ B) Saline \quad ii) H$_2$O C) Electron deficient \quad iii) MgH$_2$ D) Electron rich \quad iv) B$_2$H$_6$
Aluminium chloride in acidified aqueous solution gives a complex ion 'X'. The hybridization of central atom in X is
Identify the correct statements from the following: (a) Alkali metals are strong reducing agents. (b) KO$_2$ is a diamagnetic oxide. (c) Lithium chloride exists as LiCl . 2H$_2$O
20 mL of gas A and 10 mL of gas B diffuses through a porous membrane separately in 1 minute. If the vapor density of B is X, what is the vapor density of A?
If the total electricity required to deposit 1 mole of a metal M is equal to that of 10.7 amperes of current for 10 hours. The equivalent weight of the metal is (atomic weight = M u)
Identify the correct statements from the following. (i). For adiabatic process, $\Delta U = W_{adiabatic$} (ii). Work is a path function. (iii). Volume is an extensive property.
Match the following List - I (Type of reaction) \quad List - II (unbalanced equation) A Combination reaction \quad i) AgNO$_3$ + CaCl$_2$ $\rightarrow$ AgCl + Ca(NO$_3$)$_2$ B Decomposition reaction \quad ii) Cl$_2$ $\rightarrow$ Cl$^-$ + ClO$_3^-$ C Disproportionation reaction \quad iii) Mg + N$_2$ $\rightarrow$ Mg$_3$N$_2$ D Displacement reaction \quad iv) KClO$_3$ $\xrightarrow{\Delta$ KCl + O$_2$}
In which of the following, elements are correctly arranged in the decreasing order of their second ionization enthalpies.
Identify the element which has highest second ionization enthalpy
The general formula of the compound formed when a metal (M) of group - 1 reacts with non metal (x) of group - 16 is
Arrange the following species in the decreasing order of their bond orders. NO \quad NO$^+$ \quad NO$^-$ (I) \quad (II) \quad (III)

The wavelength associated with the electron moving in the first orbit of hydrogen atom with velocity $ 2.2 \times 10^6\, \text{m/s} $ is (in nm):
(Given: $ m_e = 9.0 \times 10^{-31}\, \text{kg},\ h = 6.6 \times 10^{-34}\, \text{Js} $)

At 500 K, for the reaction: $$ \text{N}_2(g) + 3\text{H}_2(g) \rightleftharpoons 2\text{NH}_3(g) $$ Given: $ K_p = 0.036\, \text{atm}^{-2} $, $ R = 0.082\, \text{L atm mol}^{-1}\text{K}^{-1} $.
Find $ K_c $ in $ \text{L}^2 \text{mol}^{-2} $.

Use the data from the table to estimate the enthalpy of formation of CH3CHO. 
 

Bond EnthalpyBondEnthalpy of Formation
400 kJ mol-1C–HC(g)    700 kJ mol-1
350 kJ mol-1C–CH(g)    200 kJ mol-1
700 kJ mol-1C=OO(g)    250 kJ mol-1

 

Identify the major product from the following reaction sequence:

Arrange the following in decreasing order of their boiling points:

Carbohydrates are stored in plants and animals in which of the following forms respectively?

Identify the major product of the following reaction:

Identify the product(s) formed in the following reaction:

Glycylalanine is a dipeptide formed by the minimum instruction time. It is made up of which amino acids?
Which compound is formed on catalytic hydrogenation of carbon monoxide at high pressure and temperature in presence of ZnO–Cr$_2$O$_3$ catalyst?