List of top Questions asked in AP EAPCET- 2023

Which of the following contains 10 electrons, 11 protons, and 12 neutrons?

Which of the following are homopolymers?

In which of the following chain termination step is absent?

Which of the following are correct? 
i. V$^{2+}$ liberates hydrogen from a dilute acid
ii. The earlier members of lanthanide series behave more like aluminium 
iii. The ‘silver’ UK coins are made of CuNi alloy 
iv. The maximum oxidation state exhibited by Neptunium is +7

Buna–N is a polymer of:
A polymer sample contains 5 molecules of molar mass 1000, 3 molecules of molar mass 500 and 2 molecules of molar mass 250. What is its weight average molecular weight (Mw)?
Which of the polymer is used in the controlled release of drug?
Sodium in liquid ammonia initiates the polymerization of which of the following monomers?
Which of the following polymer is used in the preparation of gaskets?

For ozone molecule consider the following: 
1. It is a linear molecule with bond angle $180^\circ$
2. It is an angular molecule with bond angle $117^\circ$
3. The bond lengths of both O-O bonds are same
4. With respect to oxygen it is thermodynamically more stable 
The correct options are

In which of the following pairs the polymer is correctly matched with the forces possessed by them?
A. Neoprene —- Weak intermolecular forces
B. Terylene —- Hydrogen bonding
C. Polystyrene —- Very weak intermolecular forces
D. Polythelene —- Hydrogen bonding
White metal is an alloy of

Match the following 

List I (Method)List II (Metal refined)
A) Zone refiningI) Sn
B) LiquationII) In
C) Vapour phase refiningIII) Zn
D) DistillationIV) Zr
 V) Al

The correct statements about Zeolites are: 
1. They are good shape selective catalysts
2. They contain Al-O-Si framework
3. They are not found in nature
4. They are used as catalysts for cracking hydrocarbons in the petrochemical industry.

Sphalerite is the ore of metal \( M_1 \) and malachite is the ore of metal \( M_2 \). Atomic numbers of \( M_1 \) and \( M_2 \) are respectively
The correct statements regarding froth floatation method in metallurgy are
I. Used for the purification of sulphide ores
II. Used for the roasting of sulphide ores
III. It is based on the relative densities of gangue and ore particles
IV. It is based on the wetting properties of gangue and ore particles in frothing agent and water
The process which involves the treatment of the ore with a suitable reagent so as to make it soluble but not impurities is called
Observe the following Ellingham diagram, and identify the incorrect statement regarding it:
Above 1673K, Al can reduce MgO to Mg
S-I: Scattering of light by dispersed particles of colloidal system is known as Tyndall effect.
S-II: The diameter of the dispersed particles should not be much smaller than the wavelength of the light used.
Which of the following in not correct?

Match the following:

PropertyExpression
A. πI. Kb · m
B. ΔTfII. Kf · m
C. ΔTbIII. CST
D. (P0 - P) / P0IV. (n1 / (n1 + n2))
Which of the following does not belong to an ideal solution?
34.2% (W/V) sucrose $ \left( \text{C}_6\text{H}_2\text{O}_1\right) $ solution is isotonic with 18% (W/V) of unknown solution X. Formula of X is
1.06 g of Na$_2$CO$_3$ (molar mass = 106 g mol$^{-1}$) is dissolved in 500 g water. What is its molality?
The number of moles of OH\(^-\) ions present in 100 mL of 0.2 M Al(OH)\(_3\) solution is (assume 100% dissociation)