List of top Chemistry Questions asked in TS EAMCET

Among the oxides SiO\(_2\), SO\(_2\), Al\(_2\)O\(_3\), and P\(_2\)O\(_5\), the correct order of acidic strength is:

Arrange the following halides in decreasing order of their reactivity towards dehydrohalogenation: 

The wavelength of an electron is \( 10^3 \) nm. What is its momentum in kg m s\(^{-1}\)?

The uncertainty in the determination of the position of a small ball of mass 10 g is \(10^{-33}\) m. With what \% of accuracy can its speed be measured, if it has a speed of 52.5 m s\(^{-1}\)?
An open vessel containing air was heated from 27°C to 727°C. Some air was expelled. What is the fraction of air remaining in the vessel? (Assume air as an ideal gas)
Possible number of isomers including stereoisomers for an organic compound with the molecular formula \( C_4H_9Br \) is:
In the contact process of manufacturing \(\text{H}_2\text{SO}_4\), the arsenic purifier used in the industrial plant contains:
Identify the number of molecules having permanent dipole moment from the following: $$ CCl_4, NF_3, H_2S, HBr, SF_4, SiF_4, XeF_4, BeCl_2, SnCl_2, BrF_5, SO_2 $$
A hydrocarbon containing C and H has 92.3\% of C. When 52 g of hydrocarbon is completely burnt in oxygen, \( x \) moles of water and \( y \) moles of CO\(_2\) were formed. The liberated water is sufficient to liberate one mole of H\(_2\) when reacted with sodium metal. What is the weight (in g) of O\(_2\) consumed?
At 300 K, the vapour pressure of liquids A and B are 600 and 500 mm of Hg respectively. Two moles of A and three moles of B are mixed. The mole fractions of A and B in vapor state are respectively
Among the following, the molecule in which all atoms obey the octet rule is
What is the correct equation that relates kinetic energy (\(E_{\text{ke}}\)) and pressure (\(P\)) of one mole of an ideal gas? - (V = Volume)

At T(K), the following graph is obtained for an ideal gas.

Which of the following graphs correctly represents the work done on the gas (shaded part)?

Identify the correct statements from the following: I. Conjugate base of chloric acid is \( ClO^- \)
II. \( AlCl_3 \) is a Lewis acid
III. Conjugate base of \( NH_3 \) is \( NH_2^- \)
The anions present in baking soda, caustic soda, and washing soda respectively are
The products formed in the reaction of \( BeCl_2 \) with \( LiAlH_4 \) are
Identify the reaction in which hydrogen gas is not liberated
Assertion (A): Silicones are used in surgical and cosmetic plants Reason (R): Silicones have high thermal stability
The minimum concentration (ppm) of dissolved oxygen in water that is required for the growth of fish is

Observe the following formula 

 The groups/atoms in the plane of the paper are

IUPAC name of neohexyl alcohol is
From the following, identify the set that contains all meta directing groups:
Two statements are given below Statement I: The resonance structure with more number of covalent bonds is less stable. Statement II: The position of nuclei does not change in resonance structures.
A crystal is formed by X (cations) and Y (anions). Atoms of Y form ccp and atoms of X occupy half of octahedral voids and half of tetrahedral voids. What is the molecular formula of the crystal?
Identify the correct graph for a first-order reaction (A → P) Given:
- \( x \)-axis = time (\( t \))
- \( a \) = Initial concentration of A
- \( (a-x) \) = Concentration of A at time \( t \)