List of top Questions asked in AP EAMCET- 2024

Match the following

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?

The molar heats of fusion and vaporization of benzene are 10.9 and 31.0 kJ mol\(^{-1}\) respectively. The changes in entropy for the solid \(\rightarrow\) liquid and liquid \(\rightarrow\) vapor transitions for benzene are \(x\) and \(y\) J K\(^{-1}\) mol\(^{-1}\) respectively. The value of \(y(x)\) in J\(^2\) K\(^{-2}\) mol\(^{-2}\) is:

Match List I with List II and select the correct answer.

The enamel present on teeth becomes much harder due to the conversion of hydroxyapatite into fluorapatite. What are \( X \) and \( Y \)?

Identify the correctly matched pair from the following:

Identify the correct statements from the following:

The equation that represents ‘coal gasification’ is:

Carrot and curd are sources for the vitamins respectively.

Match the following reagents with the products obtained when they react with a ketone:

X-ray diffraction studies show that a metal 'M' crystallises in an fcc unit cell with edge length of 400 pm. If the density of the metal is \(7.5 \times 10^3 { kg/m}^{-3}\), the number of unit cells present in 0.015 kg of it is:

The transition metal with the highest melting point is:

What is the boiling point (in K) of the urea solution from the given graph?

Two statements are given below:
Statement I: Viscosity of liquid decreases with increase in temperature.
Statement II: The units of viscosity coefficient are Pascal sec. The correct answer is:

What are the variables in the graph of powder diffraction pattern of a crystalline solid?

The correct statement regarding chemisorption is

The bond order of which of the following two species is the same?

Which of the following sets are correctly matched?
(i) B2H6- electron deficient hydride
(ii) NH3- electron precise hydride
(iii) H2O- electron rich hydride

Identify the correct sets:
(i) Boron fibres- bulletproof vest
(ii) Metal borides- protective shields
(iii) Borax- glass wool

Which of the following is/are ionic in nature?
(i) GeF4
(ii) SnF4
(iii) PbF4

The bond lengths of diatomic molecules of elements X, Y, and Z respectively are 143, 110, and 121 pm. The atomic numbers of X, Y, and Z respectively are:

Lithium forms an alloy with ‘X’. This alloy is used to make armor plates. What is ‘X’?

The correct order of decomposition temperature of \(MgCO_3\) (X), \(BaCO_3\) (Y), \(CaCO_3\) (Z) is:

In the given structure of Diborane, \( \theta_1, \theta_2 \) are respectively: