List of top Chemistry Questions asked in AP EAMCET

Which of the following is/are ionic in nature?
(i) GeF4
(ii) SnF4
(iii) PbF4
Which of the following sequence of reagents converts 3-hexene to propane?
The molecular formula of a crystalline solid is X\( _3 \)Y\( _2 \). Atoms of Y form ccp lattice, and atoms of X occupy 50% octahedral voids and x% of tetrahedral voids. What is the percentage of unoccupied tetrahedral voids?
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
first order reaction
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
In the extraction of iron, the reaction which occurs at 900-1500 K in blast furnace is
Hydrolysis of XeF$_4$ gives HF, O$_2$, Xe and 'X'. The structure of 'X' is
Acidification of chromate gives 'Z'. The oxidation state of chromium in 'Z' 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.
Bakelite synthesis,
The deficiency of vitamin \( x \) causes beri-beri and deficiency of vitamin \( y \) causes convulsions. What are \( x \) and \( y \) respectively?
The sequence of reagents required to convert ethyl bromide to propanal is:
What are X, Y, Z in the following reaction sequence respectively?
Gattermann-Koch reaction
Toluene on reaction with the reagent X gave Y, which dissolves in NaHCO\( _3 \) and when reacted with Br\( _2 \)/Fe gave Z. What are X and Z?
p-Methyl benzene nitrile can be prepared from which of the following?
A Grignard reagent (X) on reaction with carbonyl compound (Y) followed by hydrolysis gave Z. Z reacts with conc. HCl at room temperature. X and Y respectively are
Which of the following is incorrect?
Which of the following acts as intracellular messengers?
What are X and Y respectively in the following reactions?
bromination under UV light
At 300 K, the vapour pressures of A and B liquids are 500 and 400 mm Hg respectively. Equal moles of A and B are mixed to form an ideal solution. The mole fraction of A and B in vapor state is respectively.
At 300 K, the \( E^\ominus_{cell} \) of \[ \text{A(s)} + \text{B}^{2+}(\text{aq}) \rightleftharpoons \text{A}^{2+}(\text{aq}) + \text{B(s)} \] is 1.0 V. If \( \Delta_r S^\ominus \) of this reaction is 100 J K\(^{-1}\), what is \( \Delta_r H^\ominus \) (in kJ mol\(^{-1}\)) of this reaction?
(F = 96500 C mol\(^{-1}\))
The critical temperature of A, B, C, D gases are 190 K, 630 K, 261 K, 400 K respectively. The quantity of gas adsorbed per gram of charcoal at same pressure is least for the gas
Which of the following is a lung irritant?
Identify the correct sets:
(i) Boron fibres- bulletproof vest
(ii) Metal borides- protective shields
(iii) Borax- glass wool