List of top Chemistry Questions asked in TS EAMCET

Sulphur dioxide on reaction with chlorine in the presence of charcoal gives compound (A). This on reaction with white phosphorus gives SO\(_2\) and compound (B). The correct statement about 'B' is

What are the products formed when ammonium dichromate is thermally decomposed?

The ore of which metal is concentrated by leaching?

The correct statements about the properties of colloidal solutions are
A. Tyndall effect is used to distinguish between a colloidal solution and a true solution
B. Zeta potential is related to movement of colloidal particles
C. Brownian motion in colloidal solution is faster if the viscosity of the solution is very high
D. Brownian motion stabilises the sols

R\(\rightarrow\)P is a first order reaction. For this reaction a graph of ln[R] (on y-axis) and time (on x-axis) gave a straight line with negative slope. The intercept on y-axis is equal to (k=rate constant)

A current of 0.5 ampere is passed through molten AlCl\(_3\) for 96.5 seconds. The mass of aluminium deposited at cathode is x mg and volume of chlorine liberated (at STP) at anode is y mL. x and y are respectively

In a mixture of liquids A and B, if the mole fractions of component A in vapour phase and liquid mixture are \(x_1\) and \(x_2\) respectively, then the total vapour pressure of liquid mixture is (where P\(_A^0\) and P\(_B^0\) are the vapour pressures of pure A and B)

Match the following

Which purification method is generally used for a high boiling organic liquid compound, which decompose below its boiling point?

The correct IUPAC name of the following compound is

Identify the compound (Z) in the following reaction sequence

Which of the following is not the common component of photochemical smog?

Consider the following sequence of reactions. \( 2\text{CH}_3\text{Cl} + \text{Si} \xrightarrow[\text{573 K}]{\text{Cu}} X \xrightarrow{\text{H}_2\text{O}} Y \xrightarrow{\text{Polymerization}} Z \). The repeating structural unit in Z is

Boron trifluoride on reaction with lithium aluminium hydride in ether gives LiF, AlF\(_3\) and X. X on reaction with NH\(_3\) gives Y. Y on further heating gives a compound Z. The number of \(\sigma\)-bonds and \(\pi\)-bonds in Z are x and y respectively. (x+y) is equal to

The major ingredient (51%) in Portland cement is

1 mL of "x volume" H\(_2\)O\(_2\) solution on heating gives 20 mL of oxygen gas at STP. The (w/v) % corresponding to "x volume" of H\(_2\)O\(_2\) is

The volume of water required to dissolve 0.1 g PbCl\(_2\) to get a saturated solution (in mL) is (Given K\(_{sp}\)(PbCl\(_2\)) = \(3.2 \times 10^{-8}\); Atomic mass of Pb = 207u)

The entropy and enthalpy changes for the reaction \( \text{CO(g)} + \text{H}_2\text{O(g)} \rightleftharpoons \text{CO}_2\text{(g)} + \text{H}_2\text{(g)} \) at 300 K and 1 atm are respectively \(-42.4 \text{ JK}^{-1}\) and \(-41.2 \text{ kJ}\). The temperature at which the reaction will go in the reverse direction is

Consider the following redox reaction in basic medium. \( x\text{Cr(OH)}_3 + y(\text{IO}_3)^- + z(\text{OH})^- \rightarrow a(\text{CrO}_4)^{2-} + b(\text{I})^- + c(\text{H}_2\text{O}) \). The incorrect option about it is

The force (F) required to maintain the flow of layers of a liquid is equal to (A = area of contact of layers, dz = distance between the layers, du = change in velocity, \(\eta\) = coefficient of viscosity)

In long form of periodic table an element 'E' has atomic number 78. The period and group number of the element are x and y respectively. (x+y) is equal to

The correct statements about the products B and C in the given reactions are (Ethanol reacts with HCl/Anhy ZnCl$_2$ to give A. A reacts with ethanolic AgCN to give B (Minor) and C (Major)). I. B and C are functional isomers II. With H$_2$|Catalyst B gives 1$^\circ$ amine and C gives 2$^\circ$ amine III. B on acid hydrolysis gives formic acid and C gives C$_3$H$_6$O$_2$ IV. C forms isocyanate with HgO

Which of the following has lowest pK$_a$ value?

Which of the following can undergo Hell-Volhard-Zelinsky reaction?