List of top Questions asked in AP EAPCET

Trisomy of 18\textsuperscript{th} chromosome causes
The efficiency of a bulb of \(1000~\text{W}\) is \(6%\). The peak value of the magnetic field produced by the electromagnetic radiation from the bulb at a distance of \(1~\text{m}\) is: \[ \left( \frac{1}{4\pi \varepsilon_0} = 9 \times 10^9~\text{Nm}^2\text{C}^{-2} \right) \]
A message signal of frequency \(20~\text{kHz}\) and peak voltage \(20~\text{V}\) is used to modulate a carrier of peak voltage \(100~\text{V}\). The modulation index is
What are ‘X’ and ‘Y’ in the following reactions?
Acetal $\xrightarrow{X}$ CH$_3$COCH$_3$ $\xrightarrow{Y}$ Oxime
Hydrolysis products of isobutyl isonitrile are:
This event occurs during electron transport system and oxidative phosphorylation of mitochondria
When the voltage applied across a reverse biased p-n junction diode is increased, then the diffusion current
A flask with open mouth containing air was heated from 27°C to 477°C. Some air was expelled. What is the fraction of air expelled out?
The geometries of mononuclear carbonyl complexes of Cr, Fe, Ni are respectively
In neutral or faintly alkaline medium, $MnO_4^-$ oxidizes $I^-$ to iodate. What is the volume (in L) of 0.02M $KMnO_4$ required to completely convert 1 L of 0.5 M KI solution to iodate in neutral or faintly alkaline medium?
Ethane on heating with a regulated supply of air at high pressure in presence of manganese acetate forms 'Q'. 'Q' is
In the extraction of copper from copper glance, blister copper is formed by the evolution of a gas X. The shape of molecule of X is
At the end of translation, the release factor binds to this codon to complete polypeptide from the ribosome
Choose the wrong pair corresponding to selection of transformed cells
Assertion (A): Amphibians remained as imperfect group.
Reason (R): Although Amphibians invaded land, they could not adapt completely to terrestrial life.
A wave is reflected from a rigid support. The change in phase on reflection will be
At T(K), the electrode potential of A$^{2+}$(X M)$|$A(s) is –0.2285 V. Given $E^\circ_{A^{2+}/A} = -0.14$ V, the value of X in mol L$^{-1}$ is:
For the given concentration, if the ratio of the diameters of the molecules of two gases is 1 : 2, then the ratio of their mean free paths is
Which of the following oxides is highly basic?
Identify the correct statements from the following.
i. Melting points and boiling points of group 15 elements are much higher than those of corresponding group 14 elements
ii. SiO only exists at high temperatures
iii. PbI\( _4 \) does not exist
iv. Buckminster fullerene contain twelve 6-membered carbon rings and twenty 5 - membered carbon rings.
What are 'X' and 'Y' in the following reaction?
conc.naoh
A spring has a spring constant 200 Nm\(^{-1}\). If it is stretched by 1 cm then the potential energy stored in it is:
Consider the following statements for a gold sol: I) It is macromolecular colloid II) It is a lyophobic sol III) It is a negatively charged sol IV) It is a multimolecular colloid V) It is an associated colloid The correct statements are:
In which of the following amino acids -OH group is present?
Structure of bacteriophages is complicated because they show