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Chemistry
List of top Chemistry Questions asked in AP EAMCET
The non-biodegradable waste formed in fertilizer industries is
AP EAMCET - 2019
AP EAMCET
Chemistry
industrial waste
The average translational kinetic energy of a molecule in a gas becomes equal to $0.69\, eV$ at a temperature about [Boltzmann constant = $1.38 \times 10^{-23} \; J \; K^{-1}$]
AP EAMCET - 2019
AP EAMCET
Chemistry
Spontaneity
The copper (II) halide which does not exist is
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 17 Elements
Chlorine oxidises sulphur dioxide in the presence of water to give an oxyacid
$A$
. Chlorine also oxidises iodine in the presence of water to give an oxyacid
$B$
. The oxidation states of
$S$
and
$I$
in
$A$
and
$B$
are respectively
AP EAMCET - 2019
AP EAMCET
Chemistry
Chlorine
The number of moles of solute present in the solutions of $I, II$ and $III$ is respectively I. $500 \,mL$ of $0.2\, M\, NaOH$ II. $200 \,mL$ of $0.1 \,N \,H _{2} SO _{4}$ II. $6 g$ of urea in $1 \,kg$ of water
AP EAMCET - 2019
AP EAMCET
Chemistry
Mole concept and Molar Masses
$\ce{H_2C = CH_2 + O_2 ->[Aqueous \; medium] Ch_3CHO}$ What is the catalyst used in the above green reaction?
AP EAMCET - 2019
AP EAMCET
Chemistry
Alkenes
Identify the set of acidic oxides.
AP EAMCET - 2019
AP EAMCET
Chemistry
properties of d block elements
Which one of the following has maximum number of hybrid orbitals ?
AP EAMCET - 2019
AP EAMCET
Chemistry
Hybridisation
Observe the following molecules.
$PCl_5, BrF_5, ClF_5, PF_5, ClF_3, XeF_4, XeF_2, IF_5 $
The number of molecules having square pyramidal geometry from the above is
AP EAMCET - 2019
AP EAMCET
Chemistry
Hybridisation
Acetic acid on heating with
$ {NH_3}$
forms
$A$
. When
$A$
reacts with
$ {LiAlH_4}$
followed by hydrolysis gives
$B$
. When
$B$
is heated with chloroform in
$KOH$
medium gives
$C$
. What are
$B$
and
$C$
respectively?
AP EAMCET - 2019
AP EAMCET
Chemistry
Chemical Reactions
$KMnO _{4}$
oxidises
$S _{2} O _{3}^{2-}$
to
$SO _{4}^{2-}$
in medium
$x$
and
$NO^{-}_2$
to
$NO^{-}_3$
in medium
$y, x$
and
$y$
are respectively
AP EAMCET - 2019
AP EAMCET
Chemistry
Balancing a redox reaction
White phosphorus is heated with concentrated $NaOH$ in $CO _{2}$ atmosphere to form a gas $A$ and compound $B$. When $A$ is bubbled into aqueous $CuSO _{4}$ solution copper phosphide and $C$ are formed, $B$ and $C$ are respectively
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 15 Elements
Which one of the following is not present in the nitration mixture?
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 15 Elements
The walls of a closed cubical box of edge
$60\, cm$
are made of material of thickness
$1\, mm$
and thermal conductivity
$4 \times 10^{-4} \; cal \; s^{-1} \; cm^{-1} {^{\circ}C^{-1}}$
. The interior of the box is maintained
$1000 \; {^{\circ}C}$
above the outside temperature by a heater placed inside the box and connected across
$400\, V\, DC$
supply. The resistance of the heater is
AP EAMCET - 2019
AP EAMCET
Chemistry
Conductance
$KO _{2}$
, reacts with water to form
$A, B$
and
$C .$
$B$
forms
$C$
when it reacts with iodine in basic medium. What are
$B$
and
$C$
respectively?
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 17 Elements
Noble metals like gold and platinum are soluble in which of the following mixtures?
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 18 Elements
Which of the following is water-gas shift reaction?
AP EAMCET - 2019
AP EAMCET
Chemistry
GROUP 14 ELEMENTS
Which of the following metals exist in liquid state duiing summer season?
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 13 Elements
Which of the following reactions can be used to prepare diborane? I)
$ {BF_3 + LiAlH_4 ->[ether]}$
II)
$ {BF_3 + NaH ->[450 k]}$
III)
$ {Na_2B_4O_7 + H_2O -> }$
IV)
$ { NaBH_4 + I_2 ->}$
AP EAMCET - 2019
AP EAMCET
Chemistry
Group 13 Elements
Which of the following are carbonate ores? l) Magnetite II) Kaolinite III) Siderite IV) Calamine
AP EAMCET - 2019
AP EAMCET
Chemistry
Concentration of ores
The polydispersity index of a polymer containing $10$ molecules with molecular mass $1.0 \times 10^4$ and $10$ molecules with molecular mass $1.0 \times 10^5$ is approximately
AP EAMCET - 2018
AP EAMCET
Chemistry
molecular mass of polymers
Identify the reaction in which monobasic and dibasic acids are formed
AP EAMCET - 2018
AP EAMCET
Chemistry
Acids and Bases
Identify the halogen exchange reaction from the following
AP EAMCET - 2018
AP EAMCET
Chemistry
Chemical Reactions
Isopropyl benzene on aerial oxidation followed by acid hydrolysis of the resulting compound yields
AP EAMCET - 2018
AP EAMCET
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Identify chiral molecules from the following
AP EAMCET - 2018
AP EAMCET
Chemistry
Isomerism
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