List of top Chemistry Questions asked in AP EAMCET

The total number of products formed in the following reactions:
LiNO\(_3\) \(\xrightarrow{\Delta}\) Products NaNO\(_3\) \(\xrightarrow{\Delta}\) Products Be(NO\(_3\))\(_2\) \(\xrightarrow{\Delta}\) Products

Identify the correct statements from the following: 
[I.] At constant pressure, physical adsorption decreases with increase in temperature. 
[II.] Enthalpy of physisorption is higher than enthalpy of chemisorption. 
[III.] Gas mask used in coal mines consists of activated charcoal.

The correct statement regarding chemisorption is

The number of \(\sigma\) bonds, \(\pi\)-bonds, and lone pairs of electrons present in the product Z in the given reaction sequence are respectively: 

Styrene on reaction with reagent X gave Y, which on hydrolysis followed by oxidation gave Z. Z gives positive 2,4-DNP test but does not give iodoform test. What are X and Z respectively?
At \(T\)K, for one mole of an ideal gas, \(P\), \(V\) and \({v}_{rms}\) were measured. A graph of \(({v}_{rms})^2\) (on y-axis) and \(PV\) (on x-axis) goes straight line passing through origin. Its slope is \(m\). What is its molar mass (in kg mol\(^{-1}\))?

Match the following: 



 

In the ground state of hydrogen atom, electron absorbs 1.5 times energy than the minimum energy \( (2.18 \times 10^{-18} J)\) to escape from the atom. The wavelength of the emitted electron (in m) is \((m_e = 9 \times 10^{-31} kg)\)
At \( T(K) \) for one mole of an ideal gas, the graph of \( P \) (on y-axis) and \( V^{-1} \) (on x-axis) gave a straight line with slope of \( 32.8 \) L atm mol\(^{-1} \). What is the temperature (in K)? \((R = 0.0821 \text{ L atm mol}^{-1} \text{ K}^{-1})\)

Acetophenone can be prepared from which of the following reactants? 

A non-volatile solute is dissolved in water. The \(\Delta T_f\) of the resultant solution is 0.052 K. What is the freezing point of the solution (in K)?
(Given: \( K_b \) of water = 0.52 K kg mol\(^{-1}\), \( K_f \) of water = 1.86 K kg mol\(^{-1}\), Freezing point of water = 273 K)

Identify the sets containing isostructural molecules from the following options: 
i: \({SiF}_4\), \({CCl}_4\) 
ii: \({NF}_3\), \({XeO}_3\) 
iii: \({BeCl}_2\), \({HgCl}_2\) 
iv: \({SF}_4\), \({XeF}_4\)

Which of the following is NOT an essential amino acid?
What are the major products X and Y respectively in the following reactions? \[ {(CH}_3{)}_3{COONa} + {CH}_2 {CH} {Br} \rightarrow X \] \[ {(CH}_3{)}_3{COCH}_2 {CH}_3 + {CH}_3{COO}{Na} \rightarrow Y \]
Given below are two statements:
Statement-I: Easily liquefiable gases are readily adsorbed.
Statement-II: Adsorption enthalpy for physisorption is less compared to adsorption enthalpy for chemisorption.
The correct answer is:
The shape of the colourless neutral gas formed on thermal decomposition of ammonium nitrate is:
The product of Finkelstein reaction X, is not used in which of the following named reaction?

The square of the average speed of the argon gas at 27 \(^\circ\)C is (in m\(^2\)s\(^{-2}\)?): 
(\( R = 8.314 \, {J K}^{-1}{mol}^{-1} \), Atomic weight of Ar = 40 u)

Zinc oxide (white) is heated to high temperature for some time. Observe the following statement regarding above process:
I. Zinc oxide colour changes to pale yellow
II. The type of defect formed is ‘metal deficiency’
III. Some \( Zn^{2+} \) and \( e^- \) are present in interstitial places
Which of the following is not the correct order regarding the energy of orbitals?

What are the reagents X and Y respectively used in the following reaction sequence to convert a nitrile to a methyl group? 


 

A solution was prepared by dissolving 0.1 mole of a non-volatile solute in 0.9 moles of water. What is the relative lowering of vapor pressure of the solution?
Identify the method of preparation of a colloidal sol from the following:
In which of the following pairs, both molecules possess dipole moment?
Identify the Swarts reaction from the following: