List of top Questions asked in AP EAMCET- 2024

Which of the following are correct?
i. Basic structural unit of silicates is –\( \text{-RSiO-} \)
ii. Silicones are biocompatible
iii. Producer gas contains CO and \( \text{N}_2 \)

The spin-only magnetic moments of the complexes \([Mn(CN)_6]^{3-}\) and \([Co(C_2O_4)_3]^{3-}\) are respectively:

Identify the autocatalytic reaction from the following:
Two statements are given below: I. In dry cleaning, the solvent \(Cl_2C\) = \(CCl_2\) was earlier used and now it is replaced by liquefied \(CO_2\).
II. In bleaching of paper, \(H_2O_2\) was used earlier and now it is replaced by chlorine gas.

The major product (X) formed in the given reaction is an example of:

If the first ionisation enthalpy of Li, Be and C respectively are 520, 899, 1086 kJ/mol, the first ionisation enthalpy (in kJ/mol) of B will be
The \(\Delta T_b\) value for 0.01 m KCl solution is 0.01 K. What is the Van’t Hoff factor? (Kb for water = 0.52 K kg mol\(^{-1}\))
200 g of 20\% w/w urea solution is mixed with 400 g of 40\% w/w urea solution. What is the weight percentage (w/w \%) of resultant solution?
Which one of the following is used as piezoelectric material?
The anode and cathode used in electrolytic refining of copper respectively are:

Identify the amino acid which has: 

The structure given below represents:

In the ground state of hydrogen atom, electron absorbs 1.5 times energy than the minimum energy \( (2.18 \times 10^{-18} J)\) to escape from the atom. The wavelength of the emitted electron (in m) is \((m_e = 9 \times 10^{-31} kg)\)
A golf ball of mass ‘m’ has a speed of 50 m/s. If the speed can be measured within accuracy of 2\%, the uncertainty in the position is
At temperature \( T \) (K), the equilibrium constant \( K_c \) for the reaction: \[ A_2(g) \rightleftharpoons B_2(g) \] is 99.0. Two moles of \( A_2(g) \) were heated in a 1L closed flask to reach equilibrium. What are the equilibrium concentrations (in \( mol \ L^{-1} \)) of \( A_2(g) \) and \( B_2(g) \)?

At \( 27^\circ C \), the degree of dissociation of weak acid (HA) in its 0.5M aqueous solution is 1%. Its \( K_a \) value is approximately:

Which of the following does not show optical isomerism?
Arrange the following pesticides in the chronological order of their release into the market: A: Organophosphates
B: Organochlorides
C: Sodium chlorate
An alkyl halide \( C_3H_7Cl \), on reaction with a reagent X, gave the major product Y (\( C_4H_7N \)). Y on hydrolysis released a gas, which turns red litmus to blue. What are X and Y?
The correct formula used to determine the formal charge (\( Q_f \)) on an atom in the given Lewis structure of a molecule or ion is (V = number of valence electrons in free atom, U = number of unshared electrons on the atom, B = number of bonds around the atom)
The concentration of 1L of \( CaCO_3 \) solution is 1000 ppm. What is its concentration in mol \( L^{-1} \)?
(Ca = 40 u, O = 16 u, C = 12 u)
Which one of the following sets is not correctly matched?
Which of the following hormones is responsible for preparing the uterus for implantation of a fertilized egg?
Identify the correct set from the following.
A dibromide \( X (C_4H_8Br_2) \) on dehydrohalogenation gave \( Y \), which on reduction with \( Z \) gave a non-polar isomer of \( C_4H_8 \). What are \( X \) and \( Z \) respectively?