MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

Predict the product C obtained in the following reaction of butyne-1.

\[\ce{CH3CH2 - C ≡ CH + HCl -> B ->[HI] C}\]

Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298 K are −382.64 kJ mol⁻¹ and −145.6 JK⁻¹ mol⁻¹, respectively. Standard Gibb's energy change for the same reaction at 298 K is ______.

Which of the following reaction is used to prepare toluene from bromobenzene?

Which of the following factors may be regarded as the main cause of lanthanoid contraction?

Which of the following is called Wilkinson's catalyst?

Which of the following cannot be considered as an application of electrochemical series?

The most basic hydroxide from the following is:

Calculate the value `"E"_"cell"^circ` at 298 K for the following cell. 

\[\ce{Al | Al^{3+} (0.01 M) || Sn^{2+} (0.015 M) | Sn}\]

`"E"_("Al"^(3+)//"Al")^circ` = - 1.66 V and `"E"_("Sn"^(2+)//"Sn")^circ` = - 0.14 V

In which of the following reaction the value of K_p will be equal to K_c?

Dinitrogen and dioxygen combined to form nitrous oxide in equilibrium at 850 K. The equilibrium constant for this reaction is 0.56. If the equilibrium concentration of nitrous oxide gas is 3 × 10^-3 M and both dinitrogen and dioxygen have the same concentration, then what will be the concentration of dinitrogen gas in M?

Identify the last element in lanthanoid series.

Identify the product obtained in the following reaction.

The major product obtained in the following reaction is

\[\ce{Chlorobenzene + Chlorine ->[Anhydrous][FeCl3] product (Major)}\]

Identify electron withdrawing group from following when attached to π - bond.

Which of the following alkyl halide is treated with sodium metal to obtain 2, 2, 3, 3 tetramethyl butane?

Consider the following sequence of reactions

\[\ce{CH ≡ CH ->[HBr] A ->[HBr] B ->[Alc. KOH]C->[NaNH2]D}\]

Identify D.

Which element from following has largest atomic radius?

Which among the following is used as an oxidising agent to bleach wood pulp into white paper?

Which of the following actinoids exhibits only + 3 oxidation state?

The critical temperature of a substance is the temperature ____________.