List of top Questions asked in AP EAPCET

Which of the following property is less for D₂O than H₂O?
Identify the correct statements from the following:
A) Among alkali metal ions, Li⁺ has the highest hydration enthalpy.
B) Boiling point of alkali metals increases from Li to Cs.
C) Density of K is less than that of Na and Rb.
D) Li has strong tendency to form superoxide.
The correct order of electronegativity of group 13 elements is
Identify the correct statements from the following:
I) CO reduces the oxygen carrying ability of blood.
II) Producer gas contains CO and N₂.
III) C-O bond length in CO₂ is 115 pm.
The incorrect statement from the following is
IUPAC names of the given compounds (I) and (II) are respectively
Identify the most stable carbocation from the following
The correct equation for one mole of a real gas is (a, b are constants)
A and B are ideal gases. At T(K), 2 L of A with a pressure of 1 bar is mixed with 4 L of B with a pressure of P\(_B\) bar in a 100 L flask. The pressure exerted by gaseous mixture is 0.1 bar. What is the value of P\(_B\) in bar?
The mass of a mixture containing NaCl and NaBr is 4.0 g. If Na is 20% of the total mixture, the composition of NaCl in the mixture is
The number of extensive and intensive properties in the list given below is respectively: % List - Density, enthalpy, mass, temperature, volume, pressure
One mole of ethanol (C₂H₅OH) was completely burnt in oxygen to form CO₂(g) and H₂O(l). What is the \(\Delta H_f^{\circ}\) (in kJ/mol) for this reaction?
For the following given equilibrium reaction, K\(_p\) is equal to 1076 at T(K). What is the value of T (in K)? \[ \text{N}_2(g) + 3\text{H}_2(g) \rightleftharpoons 2\text{NH}_3(g) \] Given that \( R = 0.082 \, \text{L atm K}^{-1} \text{mol}^{-1} \), \( K_p = 1076 \), the equation is: \[ K_p = 1076, \, R = 0.082 \, \text{L atm K}^{-1} \text{mol}^{-1} \]
The molar solubility of PbI₂ in 0.2 M Pb(NO₃)₂ solution in terms of \(K_{sp}\) (solubility product) is
In a common emitter transistor amplifier the resistance of collector is 3 kΩ. If the current amplification factor is 100 and the base resistance is 2 kΩ, then the power gain of the transistor is
The layer of the atmosphere that reflects low frequency (LF) electromagnetic waves during daytime only is
a, b, c, d are electromagnetic radiations. Frequencies of a, b, c are $3 \times 10^{15$ Hz, respectively, whereas the wavelength of c, d are 400 nm, 750 nm, respectively. The increasing order of their energies is}
The number of electrons with magnetic quantum number $m = 0$ in the elements with atomic numbers $Z = 24$ and $Z = 29$ are respectively
Which of the following orders is not correct for the given property?
Match the following
List-I (Molecule)List-II (Dipole moment in D)
A) \( \text{HCCl} \)I) \( 1.85 \, \text{D} \)
B) \( \text{NH}_3 \)II) \( 1.07 \, \text{D} \)
C) \( \text{H}_2\text{O} \)III) \( 0.23 \, \text{D} \)
D) \( \text{NF}_3 \)IV) \( 1.47 \, \text{D} \)
Which of the following sets are correctly matched?
MoleculeNumber of lone pairs of electrons on central atomHybridization
I) \( \text{PCF}_3 \)1\( \text{sp}^3 \)
II) \( \text{SO}_2 \)2\( \text{sp}^2 \)
III) \( \text{SF}_4 \)2\( \text{sp}^3d^2 \)
IV) \( \text{CF}_4 \)2\( \text{sp}^3 \)
When current in a coil changes from 2 A to 5 A in a time of 0.3 s, if the emf induced in the coil is 40 mV, then the self-inductance of the coil is
In a series LCR circuit, the voltages across the capacitor, resistor, and inductor are in the ratio 2:3:6. If the voltage of the source in the circuit is 240 V, then the voltage across the inductor is
If a 10 W bulb emits electromagnetic waves uniformly in all directions, then the intensity of light at a distance 0.5 m from the source is nearly
The ratio of de Broglie wavelengths associated with thermal neutrons at temperatures 127°C and 352°C is