List of top Chemistry Questions asked in TS EAMCET

Match the following carboxylic acids with their pKa values.

Observe the oxides $ CO, B_2O_3, SiO_2, CO_2, Al_2O_3, PbO_2, Tl_2O_3 $. The number of acidic oxides in the list is:

In group 14 elements, the element with highest melting point is X and element with lowest melting point is Y. X and Y respectively are

A $\rightarrow$ P is a first-order reaction. The change in concentration of A with time is shown below. The instantaneous rate at points X, Y and Z is $ R_X $, $ R_Y $, and $ R_Z $, respectively. What is the correct order of $ R_X $, $ R_Y $, and $ R_Z $?

What is the electrode potential (in V) of copper electrode dipped in $ 10^{-2} \, \text{M} \, \text{Cu}^{2+} $ solution?

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

Observe the following reactions (not balanced):

Cl₂ + NaOH → NaCl + X + H₂O

Cl₂ + NaOH → NaCl + Y + H₂O

Which of the following sequence of reagents convert benzaldehyde to 4-chlorotoluene?

In the following reaction sequence, what are X and Y respectively?

nucleophilic addition of a methoxy group

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?

Adsorption of a gas (A) on an adsorbent follows Freundlich adsorption isotherm. The slope and intercept (on y-axis) of the isotherm are 0.5 and 1.0, respectively. What is the value of $ \frac{x}{m} $, when the pressure of the gas (A) is 100 atm?

Observe the following reaction. This reaction represents: \[ 4HCl + O_2 \xrightarrow{CuCl_2, 723K} 2Cl_2 + 2H_2O \]

Which of the following is correct statement?

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?

0.592 g of copper is deposited in 60 minutes by passing 0.5 amperes current through a solution of copper (II) sulphate. The electro chemical equivalent of copper (II) in g/C is:

At T(K), 0.1 moles of a non-volatile solute was dissolved in 0.9 moles of a volatile solvent. The vapour pressure of pure solvent is 0.9 . What is the vapour pressure (in ) of the solution?

Which of the following sets of oxides are correctly matched?

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.

Arrange the following in the increasing order of pKa values.

The functional groups involved in the conversion of glucose to gluconic acid and gluconic acid to saccharic acid respectively are:

Electromagnetic radiation has electric and magnetic field components. These two components:

Observe the following compounds/ions: \[ H_3BO_3, \, [B(OH)_4]^-, \, BH_4^-, \, [BCI_3 \cdot NH_3], \, SiO_4^{2-} \] The number of compounds/ions with tetrahedral shape is:

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?

At what temperature will the RMS velocity of sulfur dioxide molecules at 400 K be the same as the most probable velocity of oxygen molecules?

Which of the following will have a spin-only magnetic moment of 2.86 BM?