List of top Chemistry Questions asked in AP EAPCET

The equilibrium constant for the dissociation of HI at 773 K is:
The values of \( a \) and \( b \) in the solubility product equation for barium phosphate are:
Hydrated sodium aluminum silicate is called:
Consider the following standard electrode potentials (\(E^\circ\) in volts) in aqueous solution: \includegraphics[]{135.png} Based on this data, which of the following statements is correct?
Which of the allotropic forms of carbon is aromatic in nature?
The enamel present on teeth becomes much harder due to the conversion of hydroxyapatite into fluorapatite. What are \( X \) and \( Y \)?
Number of deactivating groups among: \( -Cl, -SO_3H, -OH, -NHC_2H_5, -COOCH_3, -CH_3 \)
What are \( X \) and \( Y \) respectively in the following reaction sequence?
The standard reduction potentials of \( 2H^+/H_2 \), \( Cu^{2+}/Cu \), \( Zn^{2+}/Zn \), and \( NO_3^-/HNO_3 \) are 0.0 V, 0.34 V, -0.76 V, and 0.97 V respectively. Identify the correct statements from the following:
I. \( H^+ \) does not oxidize \( Cu \) to \( Cu^{2+} \). 
II. \( Zn \) reduces \( Cu^{2+} \) to \( Cu \). 
III. \( NO_3^- \) oxidizes \( Cu \) to \( Cu^{2+} \).
Identify the incorrect set from the following:
What is the boiling point (in K) of the urea solution from the given graph?
A → P is a zero-order reaction. At 298 K, the rate constant of the reaction is \( 1 \times 10^{-3} \) mol L\(^{-1}\) s\(^{-1}\). Initial concentration of 'A' is 0.1 mol L\(^{-1}\). What is the concentration of 'A' after 10 sec?
Identify the method of preparation of a colloidal sol from the following:
The flux used in the preparation of wrought iron from cast iron in reverberatory furnace is:

X, Y are oxoacids of phosphorous
X, Y are oxoacids of phosphorous. The number of P – OH bonds in X, Y respectively is:

Which of the following occurs with KMnO\(_4\) in neutral medium?
The correctly matched set of the following is:
Identify the correctly matched set from the following:
Given below are two statements:
I. Cytosine and guanine are formed in equal quantities in DNA hydrolysis. 
II. Adenine and uracil are formed in equal quantities in RNA hydrolysis. The correct answer is:
Identify the correctly matched pair from the following:

What are Y and Z respectively in the following reaction sequence?

What are Y and Z respectively in the following reaction sequence
Hydrolysis of an alkyl bromide X (C\(_4\)H\(_9\)Br) follows first-order kinetics. Reaction of X with Mg in dry ether followed by treatment of D\(_2\)O gave Y. What is Y?
An alcohol \( X \) (\( C_4H_{10}O \)) does not give turbidity with conc. HCl and ZnCl\(_2\) at room temperature. \( X \) on reaction with reagent \( Y \) gives \( Z \). What are \( X \), \( Y \), and \( Z \) respectively?

What are X and Y respectively in the following reactions?

What are X and Y respectively in the following reactions

Which of the following sets of reagents convert toluene to benzaldehyde?