List of top Chemistry Questions asked in TS EAMCET

A substance has a density of \( 2 \, \text{g cm}^{-3} \). It crystallizes in the fcc crystal with an edge length of 600 pm. The molar mass of the substance (in \( \text{g mol}^{-1} \)) is (\( N_A = 6 \times 10^{23} \, \text{mol}^{-1} \))
Dehydration of an organic acid X with concentrated \(\text{H}_2\text{SO}_4\) at 373K gives \(\text{H}_2\text{O}\) and gas Y. The hybridisation of the carbon in Y and nature of Y are respectively
Identify the product 'P' in the given reaction sequence
Which of the following statements is not correct?
In which of the following, metal is not correctly matched with its refining process?
The chemical X is used in the prevention of heart attack. The structure of X is
The product 'C' in the given reaction sequence is
Which of the following is not correct about Freundlich adsorption isotherm?
The atomic numbers of the elements X, Y, Z are $a, a+1, a+2$ respectively. Z is an alkali metal. The nature of bonding in the compound formed by X and Z is
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)
The molecule `X' has see-saw shape with central atom in \(sp^3d\) hybridization. What is `X'?
Total number of geometrical isomers possible for the complexes [NiCl$_4$]$^{2-}$, [CoCl$_2$(NH$_3$)$_4$]$^+$, [Co(NH$_3$)$_3$(NO$_2$)$_3$] and [Co(NH$_3$)$_5$Cl]$^{2+}$ is
Identify the reaction related to Deacon's process
Which of the following is not related to extraction of copper?
When sodium fusion extract of an organic compound is boiled with iron (II) sulphate solution followed by addition of concentrated \(\text{H}_2\text{SO}_4\), gives Prussian blue colour. This confirms the presence of the element
Which of the following reactions is an example of Clemmensen reduction?
Match the following The correct answer is
Observe the following statements.
Statement - I: The boiling point of 0.1 M urea solution is less than that of 0.1 M KCl solution.
Statement - II: Elevation of boiling point is inversely proportional to molar mass of solute.
The correct answer is
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 major ingredient (51%) in Portland cement is
In Hydrogen atom, an electron jumped from an orbit of radius 2592.1 pm to another orbit of radius 211.6 pm. What is the energy difference (in J) between these two states?
Which of the following is used as stabilizer for H$_2$O$_2$?
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
Consider the following
Assertion (A): Aspirin is useful in the prevention of heart attacks
Reason (R): Aspirin acts as anti-blood clotting agent
The correct answer is
The RMS velocity of dihydrogen is \( \sqrt{7} \) times more than that of dinitrogen. If \( T_{\text{H}_2} \) and \( T_{\text{N}_2} \) are the temperatures of dihydrogen and dinitrogen, then the correct relationship between them is