List of top Questions asked in AP EAMCET

The rate of change of \( x^{\sin x} \) with respect to \( (\sin x)^x \) is:
An organic compound (X) has an empirical formula C\(_4\)H\(_8\)O. This gives a pale yellow precipitate with iodine in NaOH solution. What is X?
What is ‘Y’ in the given reaction sequence?
benzene ring,
Identify B in the given reaction sequence:
phenylacetonitrile
Arrange the following in the correct order of their acidic strength: I. \( \text{C}_6 \text{H}_4 (\text{OH}) \) (I) II. \( \text{C}_6 \text{H}_5 (\text{OH}) \) (II) III. \( \text{C}_6 \text{H}_4 (\text{NO}_2)(\text{OH}) \) (III) IV. \( \text{C}_6 \text{H}_4 (\text{NO}_2)(\text{OH}) \) (IV)
Which one of the following is NOT a disaccharide?
Which of the following molecules contain sulfur atoms in their structure?
I. Morphine
II. Heroin
III. Penicillin
IV. Terpinenol
V. Cimetidine
Which of the following is NOT an essential amino acid?
In the Wurtz-Fitting reaction, a compound \(X\) reacts with an alkyl halide. What is \(X\)?
The product (C) in the given reaction sequence is:
bromination step with Br2
Match the following:
Thermosetting polymer
Match the complexes in list-I with their hybridization in list-II.
complexes in list-I with their hybridization
The correct order of oxidizing power of the given ions is Given: \( E^{\circ}_{\text{Mg}^{2+}/\text{Mg}} = -2.36 \, \text{V} \) and \( E^{\circ}_{\text{Cl}_2/\text{Cl}^-} = +1.36 \, \text{V}\)
Two of the products formed by the reaction of \(X\) with HCl are gases. What is \(X\)? HCl with \(X\) forms gaseous products, two of which are identified.
In which of the following metals extraction, impurities are removed as slag?
Isomerisation of gaseous cyclobutane to butadiene is a first-order reaction. At \( T(K) \), the rate constant of the reaction is \( 3.3 \times 10^{-4} \, \text{s}^{-1} \). What is the time required (in min) to complete 90% of the reaction at the same temperature? (log 2 = 0.3)
Match List-I with List-II:
Diastase
In Kolbe's electrolysis of sodium propanoate, products formed at anode and cathode are respectively:
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/are estimated by titrating polluted water with potassium dichromate solution in acidic medium?
titrating polluted water
In which of the following Galvanic cells, emf is maximum? (Given: \( E^\circ_{\text{Mg}} = -2.36 \, V \) and \( E^\circ_{\text{Cl}_2/\text{Cl}^-} = +1.36 \, V \))
At \( T(K) \), two liquids A and B form an ideal solution. The vapour pressures of pure liquids A and B at that temperature are 400 and 600 mm Hg respectively. If the mole fraction of liquid B is 0.3 in the mixture, the mole fractions of A and B in vapour phase respectively are:
Benzoic acid undergoes dimerization in benzene. \( x \) g of benzoic acid (molar mass 122 g mol\(^{-1}\)) is dissolved in 49 g of benzene. The depression in freezing point is 1.12 K. If degree of association of acid is 88%, what is the value of \( x \)? (K\(_f\) for benzene = 4.9 K kg mol\(^{-1}\))
The number of isomers possible for a dibromo derivative (Molecular weight = 186 u) of an alkene is (Br = 80 u):
Identify the incorrect statement: