List of top Questions asked in TS EAMCET

In the following reaction sequence, what are X and Y respectively?
nucleophilic addition of a methoxy group

Which of the following industries generate non-biodegradable wastes?

1) Cotton mills
(2) Paper mills
(3) Thermal power plants
(4) Textile factories

The alkane which is next to methane in the homologous series can be prepared from which of the following reactions? 

The correct order of boiling points of hydrogen halides is: 

The diffraction pattern of a crystalline solid gave a peak at \( 2\theta = 60^\circ \). Its ‘d’ value is 1.54 Å. What is the wavelength (in cm) of X-rays used?

Observe the following reactions (not balanced):

Cl2 + NaOH → NaCl + X + H2O

Cl2 + NaOH → NaCl + Y + H2O

Match the following carboxylic acids with their pKa values.

Consider the following reaction sequence. What are A and B?

Identify the end product (Z) in the sequence of the following reactions: 

Assertion (A): Silicones are used in surgical and cosmetic plants Reason (R): Silicones have high thermal stability
From the following, identify the set that contains all meta directing groups:
Two statements are given below Statement I: Liquid A and liquid B form a non-ideal solution with positive deviation. \hspace{0.5cm} The interactions between A and B are weaker than A–A and B–B interactions. Statement II: For an ideal solution, \(\Delta_{\text{mix}} H = 2 \text{ kJ mol}^{-1} \); \(\Delta_{\text{mix}} V = 0\).
The kinetic energy of electrons emitted, when radiation of frequency \( 1.0 \times 10^{15} \) Hz hits a metal, is \( 2 \times 10^{-19} \) J. What is the threshold frequency of the metal (in Hz)? (\( h = 6.6 \times 10^{-34} \) Js)
Which of the following will have a spin-only magnetic moment of 2.86 BM?
The standard enthalpy of combustion of C (graphite), H\(_2\) (g) and CH\(_3\)OH (l) respectively are \(-393\), \(-286\) and \(-726\) kJ mol\(^{-1}\). What is the standard enthalpy of formation of methanol?
The molar conductivity of 0.02 M solution of an electrolyte is \( 124 \times 10^{-4} \) S m\(^{2}\) mol\(^{-1}\). What is the resistance of the same solution (in ohms), kept in a cell of cell constant 129 m\(^{-1}\)?
Among the hydrides \( NH_3, PH_3, \) and \( BiH_3 \), the hydride with highest boiling point is \( X \) and the hydride with lowest boiling point is \( Y \). What are \( X \) and \( Y \) respectively?

Arrange the following in the increasing order of pKa values. 

Identify the correct statements from the following: A) At 298 K, the potential of the hydrogen electrode placed in a solution of pH = 10 is -0.59 V.
B) The limiting molar conductivity of \( \text{Ca}^{2+} \) and \( \text{Cl}^- \) is 119 and 76 \( \text{S cm}^2 \text{mol}^{-1} \), respectively. The limiting molar conductivity of \( \text{CaCl}_2 \) is 195 \( \text{S cm}^2 \text{mol}^{-1} \).
C) The correct relationship between \( K_c \) and \( E_{\text{cell}} \) is \( E_{\text{cell}} = \frac{2.303RT}{nF} \log K_c \).
The functional groups involved in the conversion of glucose to gluconic acid and gluconic acid to saccharic acid respectively are:
The pK\(_a\) values of X, Y, Z respectively are 8.3, 7.1, 10.2. What are X, Y, Z?
Which of the following is correct statement?
Electromagnetic radiation has electric and magnetic field components. These two components:
Given below are the two statements regarding chlorobenzene
Statement I: Chlorobenzene is less reactive than benzene towards electrophilic substitution due to the -I effect of chlorine.
Statement II: Because of the -I effect of chlorine, it is a meta directing group.

At high pressure and regulated supply of air, methane is heated with catalyst ‘X’ to give methanol and with catalyst ‘Y’ to give methanal. \( X \) and \( Y \) respectively are: