List of top Questions asked in AP EAPCET

A convex lens has radius of curvature \( R = 40 \, \text{cm} \) for both surfaces and refractive index \( \mu = 1.5 \). Find the focal length.

In the below reaction, geometry of BCl3, X respectively are \(\text{BC}_{3} + \text{NH}_{3} \rightarrow X\)

The energy (in eV) possessed by a neon atom at $77^\circ$C is (Boltzmann constant, $k_B = 1.38 \times 10^{-23}$ J K$^{-1}$)
Observe the following species: AlCl$_3$, NH$_3$, H$^+$, Co$^{3+}$, $^-$OH, Mg$^{2+}$, BF$_3$, Cl$^-$ How many Lewis acids are present in the above list?
Fittig reaction is:
How many asymmetric carbons are present in the following molecule? HOCH$_2$CH(Br)CH(Br)CH$_2$OH
Choose the set of wrong combinations A) Acacia - Phyllode - Petiole
B) Nepenthes - Insectivorous plant - Nitrogen requirement
C) Hibiscus - Two leaves at each nodes - Alternate
D) Neem - Number of leaflets attached at common point - Pinnately compound
Prochordate that exhibits bioluminescence
In Multiple Ovulation and Embryo Transfer method, the stage at which the embryos are transferred to the surrogate mother is:
The resistance \( R \), the inductive reactance \( X_L \), and the capacitive reactance \( X_C \) of a series LCR circuit connected to an ac source are related by \( R = 0.6 X_L = 3 X_C \). The impedance of the circuit is:
Which of the following macromolecules is crucial to the communication system in the body?
The resultant of two vectors \( \mathbf{A} \) and \( \mathbf{B} \) is perpendicular to vector \( \mathbf{A} \), and the resultant magnitude is equal to half of the magnitude of \( \mathbf{B} \). The angle between \( \mathbf{A} \) and \( \mathbf{B} \) is:
The correct order of bond enthalpy of given molecules is
A block of mass \( m \) and charge \( q \) is connected to a point 'O' with an inextensible string. This system is on a horizontal table. An electric field \( E \) is applied perpendicular to the string and in the plane of the horizontal table. The tension in the string when it becomes parallel to the electric field is:
The first ionization enthalpies of Na, Mg and Si are respectively 496, 737 and 786 kJ mol−1. What would be the first ionization enthalpy of Al in kJ mol−1?
Women have which type of sex chromosomes?
Coal, Petroleum (oil) and Natural Gas belong to which type of fuels?
The bond angle is maximum in which of the following molecules?
The smooth and rough endoplasmic reticulum are involved in the synthesis of
The correct combinations among the following:
ScientistEvent / Contribution
I. Miescher Named nuclein
II. FisherDiscovered purines
III. AltmanIsolated nucleic acids
IV. FranklinDNA X-ray diffraction
Choose among the following the characters of Ophiuroidea of phylum Echinodermata:

Match the following
 

List I List II 
I.Helical virusA.Bacteriophage
II.GlycoproteinB.Rabies virus
III.Complex virusesC.Influenza virus
IV.Enveloped virusD.Measles virus
A body 'A' of mass $ m_1 $ moving with a velocity of 6 m/s collides with another body 'B' of mass $ m_2 $ which is at rest. After collision if 'A' moves with 2 m/s and 'B' moves with 3 m/s in the initial direction of A, then the ratio of $ \frac{m_1}{m_2} $ is
Which of the following reactions are endothermic and spontaneous?
Assertion (A): Loss or gain of a segment of DNA results in alteration in chromosomes.
Reason (R): Alterations in chromosomes do not result in abnormalities.