List of top Questions asked in AP EAMCET

Match the following:

Observe the following reactions
(i) \( 2\text{KClO}_3(s) \xrightarrow{\Delta} 2\text{KCl}(s) + 3\text{O}_2(g) \)
(ii) \( 2\text{H}_2\text{O}_2(aq) \xrightarrow{\Delta} 2\text{H}_2\text{O}(l) + \text{O}_2(g) \)
(iii) \( \text{AgNO}_3(aq) + \text{KCl}(aq) \longrightarrow \text{AgCl}(s) + \text{KNO}_3(aq) \)
(iv) \( 2\text{Na}(s) + \frac{1}{2} \text{O}_2(g) \longrightarrow \text{Na}_2\text{O}(s) \)
The number of redox reactions in this list is

Observe the following reactions:
I. \( \text{CaCO}_3(s) \rightarrow \text{CaO}(s) + \text{CO}_2(g) \)
II. \( \text{Cl}_2(g) \rightarrow 2 \text{Cl}(g) \)
III. \( \text{H}_2\text{O}(l) \rightarrow \text{H}_2O(s) \)
Identify the reactions in which entropy increases.

At 300 K, for the reaction, \[ \text{A}_2 \text{B}_2(g) \rightleftharpoons \text{A}_2(g) + \text{B}_2(g) \] 
\(\text{is 100 mol L}^{-1}\). \(\text{What is its } K_p \text{(in atm)} \text{at the same temperature?} \)
\(\text{(R = 0.082 L atm mol}^{-1}\) \(\text{K}^{-1}) \)

Which of the following sets are correctly matched?
(i) B2H6- electron deficient hydride
(ii) NH3- electron precise hydride
(iii) H2O- electron rich hydride

Which of the following is/are ionic in nature?
(i) GeF4
(ii) SnF4
(iii) PbF4

Two statements are given below:
Statement - I: Liquids A and B form a non-ideal solution with positive deviation. The interactions between A and B are weaker than A-A and B-B interactions.
Statement - II: For an ideal solution, \( \Delta H_{\text{mix}} = 0 \), \( \Delta V_{\text{mix}} = 0 \).
The correct answer is

A → P is a first order reaction. The following graph is obtained for this reaction. (x-axis = time; y-axis = conc. of A). The instantaneous rate of the reaction at point C is

Two statements are given below
Statement I: Adsorption of a gas on the surface of charcoal is primarily an exothermic reaction
Statement II: A closed vessel contains O$_2$, H$_2$, Cl$_2$, NH$_3$ gases. Its pressure is P (atm). About 1 g of charcoal is added to this vessel and after some time its pressure was found to be less than P (atm)
The correct answer is

Arrange the following in the increasing order of their magnetic moments
I. \( [\text{Mn(CN)}_6]^{3-} \)
II. \( [\text{MnCl}_6]^{3-} \)
III. \( [\text{Fe(CN)}_6]^{3-} \)
IV. \( [\text{FeF}_6]^{3-} \)

The X formed in the following reaction sequence and its structural type are respectively.