List of top Questions asked in AP EAPCET

The number of nucleophiles in the following list is: \[ CH_3NH_2, \quad CH_3CHO, \quad C_2H_4, \quad CH_3SH \]

The two reactions involved in the conversion of benzene diazonium chloride to biphenyl are respectively

Consider the reactions:

Consider the following reactions:

Y and Z respectively are:

The incorrect statement about 'B' is:

The conversion of X to Y is:

Two statements are given below: Statement-I: The ratio of the molar volume of a gas to that of an ideal gas at constant temperature and pressure is called the compressibility factor.
Statement-II: The RMS velocity of a gas is directly proportional to the square root of $ T(K) $.

The paramagnetic complex ion which has no unpaired electrons in $ t_{2g} $ orbitals is

A solid compound is formed by atoms of A (cations), B (cations), and O (anions). Atoms of O form an hcp lattice. Atoms of A occupy 25% of tetrahedral holes and atoms of B occupy 50% of octahedral holes. What is the molecular formula of the solid?

The reactions which occur in blast furnace at 500 – 800 K during extraction of iron from haematite are
i. $3Fe_2O_3 + CO \rightarrow 2Fe_3O_4 + CO_2$
ii. $Fe_2O_3 + 3C \rightarrow 2Fe + 3CO$
iii. $FeO + 4CO \rightarrow 3Fe + 4CO_2$
iv. $FeO + CO \rightarrow 2FeO + CO_2$

For the reaction: $A_2(g) \rightleftharpoons B_2(g)$

The equilibrium constant $K_c$ is given as 99.0. In a 1 L closed flask, two moles of $B_2(g)$ is heated to $T(K)$. What is the concentration of $B_2(g)$ (in mol L$^{-1}$) at equilibrium?

Which transition metal does not form ‘MO’ type oxide? (M = transition metal)

Observe the following reaction: $ 2A_2(g) + B_2(g) \xrightarrow{T(K)} 2A_2B(g) + 600 \text{ kJ} $. The standard enthalpy of formation $ (\Delta_f H^\circ) $ of $ A_2B(g) $ is:

Identify the molecule for which the enthalpy of atomization $ (\Delta_a H^\circ) $ and bond dissociation enthalpy $ (\Delta_{\text{bond}} H^\circ) $ are not equal.

Identify the pair of elements in which the number of electrons in the (n-1) shell is the same:

The density of nitric acid solution is 1.5 g mL$^{-1}$. Its weight percentage is 68. What is the approximate concentration (in mol L$^{-1}$) of nitric acid? (N = 14 u; O = 16 u; H = 1 u)

When glucose is oxidized with nitric acid, the compound formed is

Aqueous CuSO₄ solution was electrolysed by passing 2 amp of current for 10 min. What is the weight (in g) of copper deposited at cathode? (Cu = 63 u; F = 96500 C mol^-1)

Which of the following is an example for fibre?

An alkene X ($ C_4H_8 $) on reaction with HBr gave Y ($ C_4H_9Br $). Reaction of Y with benzene in the presence of anhydrous $ AlCl_3 $ gave Z which is resistant to oxidation with $ KMnO_4 + KOH $. What are X, Y, Z respectively?

An alkene X ($ C_4H_8 $) does not exhibit cis-trans isomerism. Reaction of X with $ Br_2 $ in the presence of UV light gave Y. What is Y?

Given below are two statements: Statement-I: In the decomposition of potassium chlorate, Cl is reduced.
Statement-II: Reaction of Na with $ O_2 $ to form $ Na_2O $ is a redox reaction.

The correct order of bond angles of the molecules $ SiCl_4 $, $ SO_3 $, $ NH_3 $, $ HgCl_2 $ is:

The bond angles $ b_1, b_2, b_3 $ in the above structure are respectively in $ ^\circ $:

‘X’ is a protecting colloid. The following data is obtained for preventing the coagulation of 10 mL of gold sol to which 1 mL of 10% NaCl is added. What is the gold number of ‘X’?