List of top Chemistry Questions asked in AP EAPCET

At 133.33 K, the RMS velocity of an ideal gas is \[ (M = 0.083 \text{ kg mol}^{-1}, R = 8.3 \text{ J mol}^{-1} \text{ K}^{-1}) \]

An alkene X (\( C_4H_8 \)) on reaction with HBr gave Y (\( C_4H_9Br \)). Reaction of Y with benzene in the presence of anhydrous \( AlCl_3 \) gave Z which is resistant to oxidation with \( KMnO_4 + KOH \). What are X, Y, Z respectively? 

An alkene X (\( C_4H_8 \)) does not exhibit cis-trans isomerism. Reaction of X with \( Br_2 \) in the presence of UV light gave Y. What is Y?
The correct order of bond angles of the molecules \( SiCl_4 \), \( SO_3 \), \( NH_3 \), \( HgCl_2 \) is:
Ba, Ca, Sr form halide hydrates. Their formulae are \( BaCl_2 \cdot xH_2O \), \( CaCl_2 \cdot yH_2O \), \( SrCl_2 \cdot zH_2O \). The values of \( x, y, z \) respectively are:

The bond angles \( b_1, b_2, b_3 \) in the above structure are respectively in \( ^\circ \):

‘X’ is a protecting colloid. The following data is obtained for preventing the coagulation of 10 mL of gold sol to which 1 mL of 10% NaCl is added. What is the gold number of ‘X’?

Which sol is used as an intramuscular injection? 

The angular momentum of an electron in a stationary state of \(Li^{2+}\) (\(Z=3\)) is \( \frac{3h}{\pi} \). The radius and energy of that stationary state are respectively.

Match the following: 

Which transition metal does not form ‘MO’ type oxide? (M = transition metal)

Which of the following reactions give phosphine? 
i. Reaction of calcium phosphide with water
ii. Heating white phosphorus with concentrated NaOH solution in an inert atmosphere
iii. Heating red phosphorus with alkali

The osmotic pressure of seawater is 1.05 atm. Four experiments were carried out as shown in the table. In which of the following experiments, pure water can be obtained in part-II of the vessel?
 

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

A flask contains 98 mg of H₂SO₄. If \( 3.01 \times 10^{20} \) molecules of H₂SO₄ are removed from the flask, the number of moles of H₂SO₄ remaining in the flask is (\( N = 6.02 \times 10^{23} \)):
The enamel present on teeth becomes much harder due to the conversion of hydroxyapatite into fluorapatite. What are \( X \) and \( Y \)?
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?
If \( \lambda_0 \) and \( \lambda \) are respectively the threshold wavelength and wavelength of incident light, the velocity of photoelectrons ejected from the metal surface is:
The values of \( a \) and \( b \) in the solubility product equation for barium phosphate are:

IUPAC names of the following compounds A and B are:

IUPAC names of the following compound

At \( T(K) \), the \( P, V \) and \( u_{\text{rms}} \) of 1 mole of an ideal gas were measured. The following graph is obtained. What is its slope (\( m \))? (x-axis = \( PV \); y-axis = \( u_{\text{rms}}^2 \); \( M \) = Molar mass)

1 mole of an ideal gas were measured
The equilibrium constant for the dissociation of HI at 773 K is:
The correct order of atomic radii of N, F, Al, Si is:
The flux used in the preparation of wrought iron from cast iron in reverberatory furnace is:

Three layers of liquid are flowing over a fixed solid surface as shown below. The correct order of velocity of liquid in these layers is:

Three layers of liquid are flowing over a fixed solid surface