List of top Questions asked in AP EAPCET

Identify the complex ion/s with the least spin only magnetic moment (in BM).
I) [Fe(CN)$_6$]$^{3-}$
II) [Co(CN)$_6$]$^{3-}$
III) [Mn(CN)$_6$]$^{4-}$
IV) [Fe(CN)$_6$]$^{4-}$
Identify the reaction which occurs in blast furnace at temperature of above 900 K.
The number of monochloro derivatives possible for 2,2-Dimethylbutane and 2,3-Dimethylbutane are respectively
The osmotic pressure of 0.01 molar solution of an electrolyte is found to be 0.65 bar at 27°C. The van’t Hoff factor of the electrolyte is (R = 0.083 bar L K$^{-1}$ mol$^{-1}$)
The BOD value of clean water is X. The maximum concentration of cadmium recommended in drinking water is Y. X and Y respectively are
The buffer system that helps in maintaining pH of blood between 7.26 and 7.42 is
The conjugate acid and base of ammonia are X and Y, respectively. What are the shapes of X and Y?
For the reactions: NaBH$_4$ + I$_2$ $\rightarrow$ A + NaI + H$_2$, and A + LiH $\rightarrow$ B, what are A and B, respectively? (Reactions are not balanced)
Vessel (A) contains 1 mole each of H$_2$ and I$_2$, and vessel (B) contains 2 moles each of H$_2$ and I$_2$. Both vessels are at the same temperature and reach equilibrium for the reaction H$_2$(g) + I$_2$(g) $\rightleftharpoons$ 2HI(g). What is the ratio of the equilibrium constants $K_p$ for vessels A and B?
The sum of number of antibonding electrons present in O$_2$, O$_2^+$, O$_2^-$ is:
One mole of an ideal gas is contained in a 1 L vessel at T(K) with a pressure of p atm. The vessel is split into two equal parts. What are the pressure and volume in each part?
Observe the following molecules: ClF, SF$_4$, CH$_4$, NH$_3$, XeF$_4$, PCl$_5$. The number of molecules in which the central atom has expanded octet is:
The ratio of the radii of the nuclei of mass numbers 27 and 64 is:
The waves used for line of sight communication and satellite communication are:
If an electron and a proton enter normally into a uniform magnetic field with equal kinetic energies, then:
If the magnetisation of a material is M and the magnetic field in the material is B, then the magnetic intensity is: ($\mu_0$ = permeability of free space)
The energy stored in a coil of inductance 50 mH carrying a current of 2 A is:
A 100 $\Omega$ resistor, a 50 $\mu$F capacitor and an inductor are connected in series to an ac source of frequency 50 Hz. If the circuit is in resonance, then the impedance of the circuit is:
If a generator of emf 440 V and internal resistance 400 $\Omega$ is connected to an external resistance of 4000 $\Omega$, then the potential difference across the external resistance is:
A 10 $\mu$C charge is placed at the vertex A of an equilateral triangle ABC of side 2 m. The work done in taking another charge $(3 + \sqrt{3})$ $\mu$C from the mid point of BC to the mid point of the side AC is:
A closed pipe and an open pipe of same length produce 4 beats per second when they are set into vibrations simultaneously. If the lengths of both the pipes were halved, then the number of beats produced per second is: (Assume same mode of vibrations in both cases)
The nature of the graph between the temperature in Fahrenheit and Celsius values is:
If the length and the focal length of its objective of an astronomical telescope are L and 8 respectively, then the focal length of its eyepiece is:
If the mass and the radius of a solid sphere are 0.22 kg and \( 20\sqrt{5}\,{cm} \), then its radius of gyration about its diameter is
The height at which the weight of a person becomes 25% of his weight on the surface of the earth is: (R$_E$ is the radius of the earth)