List of top Chemistry Questions asked in AP EAPCET

Among the following, the correct statements are
I. Lithium forms solid hydrogen carbonate
II. LiCl is soluble in ethanol
III. The formula of lithium oxide is LiO
IV. Lithium hydroxide decomposes on heating
Given below are two statements
Assertion (A) : Protium and deuterium differ in their rates of reactions
Reason (R) : They have different enthalpies of bond dissociation The correct answer is
The auto catalyst in the redox reaction involving acidified potassium permanganate and oxalic acid is
The standard electrode potential (in V) values for Al$^{3+}$/Al, Tl$^{3+}$/Tl are respectively
In which of the following reactions is ${H_2O}$ oxidized?
I. Photosynthesis
II. ${H_2O + F_2}$
III. ${H_2O + H_2}$
IV. ${H_2O + P_4O_{10}}$

The number of following pairs of elements which exhibit diagonal relationship is:

  • i. B & Si
  • ii. Be & Al
  • iii. Li & Mg
  • iv. Al & S
Match the following
List-I (Elements)
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Noble gases
List-II (Valence shell Configuration)
I. \( ns^2 np^6 \)
II. \( ns^2 np^5 \)
III. \( ns^2 \)
IV. \( ns^1 \)

Which is the correct option for the following reaction? \[ 2\,\text{CH}_3\text{CH}_2\text{Br} \xrightarrow{\text{2Na/Dry ether}} \text{?} \]

The atomic mass of H and C is 1 and 12 u respectively. What is the ratio of weight of one atom each of H and C?
Identify the pair in which both are not extensive properties.
Identify the correct statements about chemisorption:
  • I) It is irreversible adsorption
  • II) Enthalpy of adsorption is in the range of 20-40 kJ mol\(^-1\)
  • III) It is unlayered adsorption
  • IV) It does not need appreciable activation energy
Arrange the following free radicals in the correct order of their stability:
The de Broglie wavelength of an electron travelling with 20% of velocity of light is
Find A and B
oxide of nitrogen
At T (K), an ideal gas (Z) present in V L flask exerted a pressure of 16.4 atm. Its concentration is 1 mol L$^{-1}$. What is the value of T in K?

Match List I with List II:

If 5 L of an ideal gas at a constant external pressure of 2 atm expands isothermally to a final volume of \( X \) L, the system does a work of -2,026.4 J. \( X \) (in L) is

Which of the following is used in perfumery?

Identify X and Y in the following reaction $\text{CH}_{2} = \text{CH}_{2} \xrightarrow{\text{(i) X}} \text{CH}_{3}\text{CH}_{2}\text{I} \xrightarrow{\text{(ii) Y}}$

In aqueous solutions, the strongest reducing agents in Group 1 and Group 2 elements of the periodic table respectively are

Some statements about Leclanche ll are:
Anode is zinc metal
Cathode is graphite rod surrounded by powdered {MnO2} and carbon
Electrolyte is a moist paste of ZnO and KOH
Oxidation product is ZnO

The electrolyte used in mercury cell is
Nucleotides in RNA are joined by which of the following phosphodiester linkages?

Match the following.

The product of an amine 'X' with benzene sulphonyl chloride produces the product which is insoluble in alkali. The product of 'X' with ethanoyl chloride is: