List of top Chemistry Questions asked in TS EAMCET

Which of the following has the least electron gain enthalpy?

According to Fajan's rules, which of the following is not correct about covalent character?

Assertion (A): $ MgO, CaO, SrO, $ and $ BaO $ are insoluble in water.
Reason (R): In aqueous medium, the basic strength of $ MgO, CaO, SrO, $ and $ BaO $ increases with increase in the atomic number of the metal.
The correct option among the following is

The electron displacement effect observed in the given structures is known as:

X and Z respectively in the following reaction sequence are: \[ C_3H_6 \xrightarrow{X} Y \xrightarrow{C_6H_6/AlCl_3} Z \]

Match the following:

The correct answer is:

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

Assertion (A): Chlorobenzene is not formed in the reaction of phenol with thionyl chloride. Reason (R): In phenol, carbon-oxygen bond has partial double bond character.

The pK$_a$ values of X, Y, Z respectively are 8.3, 7.1, 10.2. What are X, Y, Z?

Identify the correct statements:

(i) LiF has more covalent character compared to KF
(ii) Dipole moment of NF₃ is greater than that of NH₃
(iii) The bond order is same for F₂ and O₂
(iv) Ionic compounds possess low melting and boiling points

Which of the following sets are not correctly matched? \[ \text{Molecule} \quad \text{Hybridization} \] \[ (i) \, \text{XeF}_4 \quad \text{dsp}^2 \quad (ii) \, \text{BrF}_5 \quad \text{sp}^3d^2 \quad (iii) \, \text{PF}_5 \quad \text{sp}^3d \quad (iv) \, \text{SF}_4 \quad \text{sp}^3 \]

At 400 K, the following graph is obtained for $ x $ moles of an ideal gas. $ x $ is equal to (R = gas constant, P = pressure, V = volume)

For the reaction at $ T(K) $, $ A_2(g) \rightleftharpoons B_2(g) $, $ K_c $ for the reaction at $ T(K) $ is 39.0. In a closed 1L flask, one mole of $ A_2(g) $ was heated to $ T(K) $. What is the concentration of $ B_2(g) $ at equilibrium (in mol L$^{-1}$)?

Observe the following statements Statement I : Ca(OH)$_2$; is used in white wash
Statement 11 : $CaCO_3$ is used as mild abrasive in tooth paste

Identify the correct statements from the following:
I. $\text{In}_2\text{O}_3$ is a basic oxide.
II. $\text{TiCl}_2$ is more ionic in nature than $\text{TiCl}_3$.
III. Boron reacts with dinitrogen at high temperature to form BN.

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

The technique used to purify an organic compound present in aqueous medium and which is less soluble in organic solvent is

The oxygen carrying capacity of blood is reduced due to binding of haemoglobin with

The number of molecules with electrophilic centres in the following is CH$_3$CH$_2$Br, CH$_3$COCH$_3$, CH$_3$CH$_2$CN, (CH$_3$)$_2$Cd

Arrange the following halides in decreasing order of their reactivity towards dehydrohalogenation:

Identify the correct set

At 300 K, the vapour pressure of liquids A and B are 600 and 500 mm of Hg respectively. Two moles of A and three moles of B are mixed. The mole fractions of A and B in vapor state are respectively

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

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 $?

Two statements are given below. Statement I: Adsorption of a gas on the surface of charcoal is primarily an exothermic process.
Statement II: A closed vessel containing $ O_2(g) $, $ H_2(g) $, $ Cl_2(g) $, $ NH_3(g) $ has a pressure of 9 atm. About 1 g of charcoal was added to this vessel and after some time its pressure is $ P' $ atm. It is observed that $ P'>P $. Choose the correct answer.