List of top Chemistry Questions asked in AP EAPCET

An isomer of \(C_4H_8\) (A) exhibits cis-trans isomerism. Reaction of A with \(Br_2/CCl_4\) gave B. Another organic compound \(C_4H_6\) (C) forms sodium derivative with \(NaNH_2\). Reaction of C with HBr gave D. What are B and D respectively? center
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An organic compound \(C_4H_9Br\) (A) on reaction with Na/dry ether gave B. Photochemical chlorination of B gave two monochlorides. Correct statement regarding A is:
Two statements are given below: Statement I: Aspirin inhibits the synthesis of chemicals which stimulate inflammation. Statement II: The enzyme that degrades noradrenaline is inhibited by iproniazid. The correct answer is:
Which one of the polymers does not contain \(-COO-\) linkage in its structure?
Identify the correct set containing only ambidentate ligands.
Match List-I with List-II and identify the correct combination. center
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Which of the following oxoacid is formed when phosphoric acid is made to react with \(PCl_5\)?
Identify the correct pair of ions which are most effective towards the coagulation of sols \(Fe_2O_3\cdot xH_2O\) and CdS respectively.
The spin only magnetic moment of the element having highest third ionization enthalpy among Ti, V, Cr, Mn and Fe in its \(+3\) state is (BM):
Which method of purification is used for refining titanium?
Which of the following statement is not correct about the structures of ozone and sulphur dioxide?
Which of the following statements are correct about chemisorption?

• It is highly specific in nature.

• It is reversible in nature.

• It depends on nature of gas.

• It is unilayer adsorption.
The correct answer is:
The correct IUPAC names of the compounds X and Y given below are respectively
Atoms of element B form hcp lattice and atoms of element A occupy \(\frac{2}{3}\) of tetrahedral voids. The formula of the compound formed by the elements A and B is
1.0 g of a non-electrolytic and non-volatile solute (X) was dissolved in 20.4 g of water. At 760 mm Hg the freezing point of solution was found to be \(-1.05^\circ C\). The molar mass (in g mol\(^{-1}\)) of the solute is \((K_f(H_2O)=1.86\,K\,kg\,mol^{-1})\)
\(\Delta G^\circ\) (in kJ mol\(^{-1}\)) for the cell reaction given below is \[ 2Al(s)+3Cu^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Cu(s) \] \[ \text{Given: }E^\circ_{Al^{3+}/Al}=-1.66V,\quad E^\circ_{Cu^{2+}/Cu}=+0.34V,\quad F=96500\;C\,mol^{-1} \]
At \(300^\circ C\), decomposition of azomethane follows first order kinetics. Rate constant for this reaction at this temperature is \(2.5\times10^{-4}\,s^{-1}\). If the activation energy of the reaction is \(42\,kcal\,mol^{-1}\), what is the temperature (in K) at which the half-life of the reaction is \(138.6\) seconds? \[ (R=2\,cal\,K^{-1}mol^{-1},\; \log20=1.30) \]
Molten \(Al_2O_3\) was electrolyzed between carbon electrodes. The mass (in g) of aluminium produced at cathode when 965 amperes current is passed through it for 1000 seconds is (\(F=96500\,C\,mol^{-1}\))
A mixture (X) contains two liquids with large difference in their boiling points. Another mixture (Y) contains two liquids with not much difference in their boiling points. Mixtures X and Y can be separated respectively by the methods
When lithium nitrate and calcium nitrate are heated in separate test tubes, which of the following observations would be identical for both?
Which of the following radical initiates the chain reaction responsible for depletion of ozone layer?
The number of amphoteric oxides in the following is \[ CO_2,\ GeO_2,\ SnO_2,\ PbO_2,\ CO,\ GeO,\ SnO,\ PbO \]
In which of the following boron and boron related substances are not correctly matched with the application shown against it?
What are X and Y in the following set of reactions respectively? \[ \text{I.}\quad \text{2-Methylpropene} \xrightarrow[\ ]{H_2O/H^+} X \] \[ \text{II.}\quad \text{2-Methylpropene} \xrightarrow[\ ]{KMnO_4} Y \]
The interstitial hydrides of which set of metals have same lattice as that of the parent metals?