List of top Questions asked in TS EAMCET

At 293 K, HCl(g) is dissolved in cyclohexane. Identify the graph obtained for this solution (x-axis = mole fraction of HCl dissolved in cyclohexane; y-axis = partial pressure of HCl(g)).

The substituent X increases electron density in benzene ring by hyperconjugation effect and substituent Y decreases electron density in benzene by resonance effect. X and Y respectively are

Observe the following reaction and identify the correct statements about X \[ C_4H_8 \xrightarrow[(ii)\ Zn,H_2O]{(i)\ O_3} Ethanal \] I. It does not exhibit cis/trans isomerism II. It adds water in presence of dilute $H_2SO_4$ to give secondary alcohol III. It is obtained as major product in the reaction of secondary butyl chloride with alcoholic KOH

What are A and B in the following reactions? \[ C_3H_4 \xrightarrow[A]{H_2O} X \] \[ (CH_3)_2CHOH \xrightarrow[B]{} X \]

Given below are two statements: Statement-I: A mixture of aniline and chloroform can be separated by differential extraction. Statement-II: Aniline can be separated from a mixture of aniline and water by steam distillation.

Consider the following reactions \[ Al(s)+HCl(aq)\rightarrow X+A\uparrow \] \[ Al(s)+NaOH(aq)\rightarrow Y+B\uparrow \] Which of the following is are correct? I. Y is water soluble II. X is not soluble in water III. Both A and B are same

The pair of s-block metals which do not form solid hydrogen carbonates is

Dihydrogen reacted with elements of atomic number 15, 19 and 40 to form respective hydrides. The type of these hydrides respectively are

A sample of water has no fluoride (F) ions in it. What is the maximum limit (in $mg~L^{-1}$) of soluble fluoride salt to be added to this water to convert it into safe drinking water?

Which of the following does not exist?

The correct order of hydration enthalpy of ions of Li, Na, Mg, Ca is

What is the enthalpy change (in $kJ~mol^{-1}$) for the following reaction? \[ CCl_4(g)\rightarrow C(g)+4Cl(g) \]

Which one of the following molecules has maximum number of lone pairs of electrons?

Identify the reaction in which the hybridization of the underlined atom is changed

At $T(K)$ the kinetic energy of one mole of an ideal gas is 3735 J. If its pressure is 1 atm, the volume of gas is ($R = 8.3~J~mol^{-1}K^{-1}$)

Observe the following reaction and identify the correct relationships from the following \[ xP_4(s)+yOH^{-}(aq)+zH_2O(l)\rightarrow aPH_3(g)+bH_2PO_2^{-}(aq) \] I. $x+y+z=6$ II. $x=a$ III. $x+y+z=3+a+b$ IV. $a-z+b=1$

What is the pH of $10^{-2}M$ aqueous solution of aniline at 298 K?}

Consider the following ions

. The largest cation and largest anion are respectively}

In a cathode ray experiment hydrogen gas was subjected to very low pressure and high voltage. The $\frac{e}{m}$ of cathode rays liberated was $-x~C~kg^{-1}$. In the second experiment helium gas was used under the same experimental conditions. What is the $\frac{e}{m}$ $(in~C~kg^{-1})$ of cathode rays liberated in the second experiment?}

The work function $(W_0)$ of metals A, B and C is 2.25, 2.42 and 3.7 eV respectively. These metals were irradiated with light of wavelength 400 nm. Identify the metals from which photoelectrons are emitted $(h = 6.6 \times 10^{-34} Js; c = 3 \times 10^8 ms^{-1}; 1 eV = 1.6 \times 10^{-19} J)$

The frequency band of standard amplitude modulated broadcast is

The atomic numbers of four elements A, D, E, G are 4, 7, 8, 12 respectively. The decreasing order of electronegativity of these elements is

The radius of second orbit of hydrogen atom is 2.12 Å and the velocity of the electron revolving in this orbit is $1.1\times10^6 ms^{-1}$. According to classical electromagnetic theory, the initial frequency of light emitted by this electron is nearly}

The ratio of the rate of disintegration and the initial number of nuclei of a radioactive substance is $0.25~hour^{-1}$. The time taken (in hours) for the number of nuclei of this substance to become $\frac{1}{\sqrt{e}}$ times the initial number of nuclei is}

A pure silicon with $6 \times 10^{28}$ atoms is doped with arsenic of 1 ppm concentration. If the intrinsic carrier concentration is $1.2 \times 10^{16} m^{-3}$, then the number of holes in the doped silicon is}