List of top Chemistry Questions asked in AP EAPCET

Elements A and B have FCC and BCC structures respectively with unit cell edge length \( a = 3 \, \text{Å} \).
The number of atoms in 210 g of A = number of atoms in 594 g of B.
If density of A is \( 7 \, \text{g/cm}^3 \), what is the density of B?
The reaction of diborane in diethyl ether with X gives metal borohydride. X is a:
Which of the following is not a disproportionation reaction?
For the reaction \( A(g) + \frac{1}{2} B(g) \rightleftharpoons C(g) + \text{heat} \), the favorable conditions for the forward reaction are:
The \( K_a \) values of A, B, and C are \( 1.8 \times 10^{-4} \), \( 5 \times 10^{-10} \), and \( 3 \times 10^{-8} \), respectively.
The correct order of their acidic strength is:
Identify the correct statements from the following:
The formula of Calgon is \( \text{Na}_6(\text{PO}_3)_6 \)
(II) Exhausted permutit is regenerated by aqueous KCl solution.
(III) Calcium stearate is soluble in water.
(IV) In ice crystals, each oxygen is surrounded by four oxygen atoms.
The compound that is used in smoke screens is:
Which of the following equations are correct?
(A) U =H−PV
(B) G =H−TS
(C) U =q+W
Which of the following reactions is not a disproportionation reaction?
Find the false statement for ideal gases:
Maximum number of electrons possible with spin quantum number \(+\frac{1}{2}\) and principal quantum number \(n = 4\) in an atom is:
The combination of which of the following gives an ionic compound with maximum covalent character?
The tetra-atomic molecules/ions with different shapes are:
In which of the following, the elements Al, B, Mg, and K are correctly arranged in the increasing order of their metallic character?
The number of valence electrons present in an element with atomic number 117 is:
The wavelength of the electron in the first orbit of hydrogen atom is \(3.3 \times 10^{-10} \, \text{m}\). The kinetic energy of the electron (in J) is: (Given: \( h = 6.6 \times 10^{-34} \, \text{Js}, \, m_e = 9.0 \times 10^{-31} \, \text{kg} \))
The number of species of the following that can act both as Bronsted acids and bases is $HCl , ClO _{4}^{-},{ }^{-} OH , H ^{+}, H _{2} O , HSO _{4}^{-}, SO _{4}^{2-}$, $H _{2} SO _{4}, Cl ^{-}$
$50\, mL$ of $0.02\, M \,NaOH$ solution is mixed $50\, mL$ of $0.06 \,M$ acetic acid solution, the $pH$ of resulting solution is $\left( p K_{a}\right.$ of acetic acid is $4.76, \log 5=0.70$ )
The molecule/ion having diamagnetic nature and a bond order of $1.0$ is
Which one of the following properties has same value for $H_2$ and $D_2$ ?
$6g$ of graphite is burnt in a bomb calorimeter at $25^{\circ}C$ and $1\, atm$ pressure. The temperature of water increased from $25^{\circ}C$ to $30^{\circ}C$. If $\Delta H$ of this reaction is $-248 \,kJ\, mol^{-1}$, find out $C_v$ (in $kJ\, K^{-1}$) of bomb calorimeter.
If the kinetic energy of $O_2$ gas is $4.0 \,kJ \; mol^{-1}$ . its RMS speed in $cm \; s^{-1}$ is
The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
In which of the following the election gain enthalpy of elements is correctly arranged?
The $IUPAC$ name of the following compound is