List of top Questions asked in TS EAMCET

Mole fraction of H$_2$SO$_4$ in aqueous solution is 0.9. Find mass % of H$_2$SO$_4$. (H=1, S=32, O=16 u)
In which of the following, metal is not correctly matched with its refining process?
Match the following compounds with their uses:
Observe the following statements
Statement-I: Hybridisation is not same in both SF₆ and BrF₅.
Statement-II: BrF₅ is Square pyramidal while SF₆ is octahedral in shape
The correct answer is
The IUPAC name of the following compound is
In the extraction of iron using blast furnace to remove the impurity (X), chemical (Y) is added to the ore. X and Y are respectively
Neoprene is the polymer of a monomer X. IUPAC name of X is
The products C and D are
The reaction/s which represent the production of diborane on an industrial scale is/are:
I. 4BF$_3$ + 3LiAlH$_4$ → 2B$_2$H$_6$ + 3LiF + 3AlF$_3$
II. 2NaBH$_4$ + I$_2$ → B$_2$H$_6$ + 2NaI + H$_2$
III. 2BF$_3$ + 6NaH → B$_2$H$_6$ + 6NaF
X and Y in reaction sequence:
The pair of molecules having same number of lone pair of electrons on central atom is
The slope of isobar of one mole of an ideal gas at p (atm) is 0.082 L K$^{-1}$. What is the value of p in atm? (R=0.082 L atm mol$^{-1}$K$^{-1}$)
Elements A and B form two non-volatile compounds (AB$_2$ and AB$_4$). When 1 g of AB$_2$ is added to 20 g of C$_6$H$_6$ (molar mass =78 gmol$^{-1}$) the freezing point of C$_6$H$_6$ is lowered by 2.3 K. When 1 g of AB$_4$ is added to 20 g of C$_6$H$_6$, the freezing point of C$_6$H$_6$ was lowered by 1.3 K. The atomic masses of A and B are respectively (K$_f$(C$_6$H$_6$)=5.1 K kg mol$^{-1}$)
The energy associated with electron in first orbit of hydrogen atom is \(-2.18 \times 10^{-18}\) J. The frequency of the light required (in Hz) to excite the electron to fifth orbit is (\(h=6.6 \times 10^{-34}\) Js)
The sum of bond order of \(O_2\), \(O_2^-\), \(O_2^{2-}\) and \(O_2^+\) is equal to
An alkyne has the molecular formula C₆H₁₀. The number of 1-alkyne isomers (excluding stereoisomers) possible for it is
Match the following
The correct answer is
In which of the following, intramolecular hydrogen bonding is present?
The reagent which is used to distinguish primary, secondary and tertiary amines from the mixture is
According to Bohr's theory of hydrogen atom, the approximate angular momentum of electron in H atom in the ground state is ($h = 6.62 \times 10^{-34}$ Js):
Consider the following statements
Statement-I: Oxides of sulphur and nitrogen are air pollutants
Statement-II: Photochemical smog is a reducing smog
The correct answer is
Identify the correct statements from the following
I. In Leclanché cell, Mn$^{2+}$ is oxidized to Mn$^{3+}$
II. Electrolysis of aqueous CuCl$_2$ solution using Pt electrodes liberate Cl$_2$ (g) at anode
III. Lead storage battery is a secondary battery
What are X, Y, Z respectively in the following reaction sequence?
CH$_3$CH=CHCH$_3$ $\xrightarrow{X}$ CH$_3$COOH $\xrightarrow{Y}$ CH$_3$CO-Cl $\xrightarrow{Z, C6H5NH2}$ C$_6$H$_5$NHCOCH$_3$
In Sr (Z=38), the number of electrons with \(l=0\) is x, number of electrons with \(l=2\) is y. \((x-y)\) is equal to (\(l\) = Azimuthal quantum number)
The incorrect statement about Castner-Kellner cell process is