List of top Chemistry Questions asked in AP EAPCET

Consider the reactions: Y \(\xrightarrow{i.\ LiAlH_4,\ ii.\ H_2O}\) X; \(CONH_2 \xrightarrow{Br_2/OH^-}\) X. Statements: I. \(pK_b\) of X \(>\) Y; II. Both form stable diazonium salts with \(NaNO_2/HCl\); III. Both prepared by ammonolysis.

An organic compound \(C_4H_9Br\) (A) on reaction with Na/dry ether gave B. Photochemical chlorination of B gave two monochlorides. Correct statement regarding A is:

Match the following: A. Swarts reaction, B. Finkelstein reaction, C. Wurtz-Fittig reaction, D. Sandmeyer reaction.

What are X and Y respectively in the following set of reactions?

Consider the reaction of Cumene: (i) $O_{2}$ (ii) $H_{3}O^{+} \rightarrow A + B$. A is acidic and forms a salt with NaOH. X and Y are reagents to convert A and B to hydrocarbons. What are X and Y?

What are X and Y in the following set of reactions?

Which of the following represents Etard reaction?

In which of the following set/s, reactant and reagent are correctly matched to get ethyl isonitrile as major product?

According to the kinetic theory of gases, the absolute temperature of a gas is directly proportional to

One mole of $O_2$ (g) was passed over hot coke. At the end of the reaction, 40 % of $O_2$ (g) was unreacted. What is the volume (in L) of reaction mixture at STP (273.15 K and 1 bar)? (Assume only CO (g) is formed in the reaction)

In the estimation of nitrogen by Kjeldahl's method, the ammonia evolved from 0.30 g of an organic compound (X) was passed into 100 mL of 0.1 M $\text{H}_2\text{SO}_4$. The unreacted acid required 20 mL of 0.5 M NaOH for complete neutralization. What is X?

In which of the following sets, given species are not only diamagnetic in nature but also inner orbital complexes?

The metal ion, ligands present in Wilkinson catalyst are respectively

Which of the following has maximum number of electrons in \(t_{2g}\) orbitals?

The IUPAC name of the complex shown below is \( \text{K}_3[\text{Co}(\text{ox})_3] \):

Match the following lists: A) $[MnCl_6]^{3-}$, B) $[Mn(CN)_6]^{3-}$, C) $[Fe(CN)_6]^{4-}$, D) $[CoF_6]^{3-}$ with their d-electronic configurations.

Match the following complexes in List-1 with their hybridisation in List-2: {ll} LIST - 1 & LIST - 2
1. \( [\text{Ni}(\text{CO})_4] \) & a. \( \text{sp}^3\text{d}^2 \)
2. \( [\text{Ni}(\text{CN})_4]^{2-} \) & b. \( \text{d}^2\text{sp}^3 \)
3. \( [\text{Co}(\text{NH}_3)_6]^{3+} \) & c. \( \text{dsp}^2 \)
4. \( [\text{CoF}_6]^{3-} \) & d. \( \text{sp}^3 \)

Identify the correct set containing only ambidentate ligands.

The IUPAC name of an element with atomic number \( 119 \) is:

The IUPAC name of an element with atomic number 119 is:

Observe the following reaction: $2N_2O_5(g) \rightarrow 4NO_2(g) + O_2(g)$. At T(K), the concentration of $N_2O_5(g)$ changed from 2 mol $L^{-1}$ to 1.5 mol $L^{-1}$ in 100 min. What is the average rate (in mol $L^{-1} min^{-1}$) of this reaction?

Aspirin is chemically known as

Histamine is responsible for various physiological effects. Which of the following statements are correct?

• [(I)] Histamine is a potent vasodilator.

• [(II)] Histamine lowers blood pressure by constricting blood vessels.

• [(III)] Histamine is responsible for nasal congestion associated with common cold and allergies.