List of top Chemistry Questions asked in TS EAMCET

The number of benzenoid and non-benzenoid aromatic species present in the following list are respectively Naphthalene, Toluene, Cycloheptatrienyl cation, Anthracene

The IUPAC names of the compounds A and B respectively are

 

0.1435 g of silver chloride was obtained from 0.0945 g of an organic compound by Carius method. The percentage of chlorine by weight in the compound is (molar mass of AgCl = 143.5 g mol\(^{-1}\))

In the following reaction sequence X and Y respectively are

The concentration of 1 L of CaCO\(_3\) solution is \(10^{-5}\) M. Its concentration in ppm is. (Ca=40u; C=12u; O=16u)

The following graph is obtained for KCl solution at 300 K. What is \( \Lambda_m^0 \) (in S cm² mol\(^{-1}\)) of KCl? 

Identify the correct statements from the following:
I. The order of reaction is determined from experiment only
II.The order of reaction can be zero , positive integer or a fraction
III.In a multistep reaction, the slow step determines the rate
If the radius of the first orbit of the hydrogen-like ion is \(1.763 \times 10^{-2}\) nm, the energy associated with that orbit (in J) is:
If first ionization enthalpy (\(\Delta H\)) values of Na, Mg and Si are respectively 496, 737, and 786 kJ/mol, the first ionization enthalpy value of Al (in kJ/mol) will be:
Among the oxides SiO\(_2\), SO\(_2\), Al\(_2\)O\(_3\), and P\(_2\)O\(_5\), the correct order of acidic strength is:
According to molecular orbital theory, which of the following statement is not correct?
The melting point of o-hydroxybenzaldehyde (A) is lower than that of p-hydroxybenzaldehyde (B). This is because:
At what temperature will the RMS velocity of sulfur dioxide molecules at 400 K be the same as the most probable velocity of oxygen molecules?
At 300 K, 3.0 moles of an ideal gas at 3.0 atm pressure is compressed isothermally to one half of its volume by an external pressure of 6.0 atm. The work done (in kJ) is:
The equilibrium constants for the following two reactions are given below at T(K): \[ 2A(g) \leftrightarrow B(g) + C(g), \quad K = 16 \quad \text{and} \quad 2B(g) \leftrightarrow D(g), \quad K = 25. \] What is the value of the equilibrium constant (K) for the reaction given below at T(K)? \[ \frac{1}{2} A(g) \leftrightarrow B(g) \]
At T(K), the equilibrium constants for the following two reactions are given below: \[ 2A(g) \leftrightarrow B(g) + C(g), \quad K = 16 \quad \text{and} \quad 2B(g) \leftrightarrow D(g), \quad K = 25. \] What is the value of the equilibrium constant (K) for the reaction given below at T(K)? \[ \frac{1}{2} A(g) \leftrightarrow \frac{1}{2} B(g) \]
Identify the pair of hydrides which have polymeric structure:

Match the following:

The hydroxide of which of the following metal reacts with both acid and alkali?
The correct formula of borax is Na\(_2\)[B\(_4\)O\(_5\)(OH)\(_x\)]·yH\(_2\)O. The sum of \(x\) and \(y\) is:
Eutrophication can lead to:
In which of the following options, the IUPAC name is not correctly matched with the structure of the compound?

Arrange the above carbocations in the order of decreasing stability: 

Consider the following reaction sequence. What are A and B?

Identify the end product (Z) in the sequence of the following reactions: