IIT JAM Chemistry Mock Test 4 - Chemistry MCQ

The standard electrode potential E° and its temperature coefficient (dE/dT)_P for a cell are 2V and –5 × 10^–4 VK^–1 at 300 K respectively. The cell emf would be?  
 Zn(s) + Cu²⁺ (aq) → Zn⁺² (aq.) + Cu(s)    

The suitable reagent for the following conversion is:​

What would be the correct order of PI values for given amino acids?  
(1) Lysine  (2) Aspartic acid  (3) Valine    

Correct order of reactivity of following compounds in Dies-Alder reaction would be?​

Benzoic acid (C₆H₅COOH) dimerizes in benzene. 'W' g of acids dissolved in 30 g of benzene shows a depression in freezing point equal to 2K. If the percentage association of the acid to form dimer is 80, then,numerical value of ‘W’ is [K_f = 5 Kg mol^–1, Molar Mass = 122 mol^–1]:    

A matrix is called orthogonal if it satisfies:    

Correct formula of chromite is (It is an oxide mineral belonging to the spinel group):    

The correct form of moment of inertia of CO₂ molecules is:

The reaction, MgO(s) + C(s) → Mg(s) + CO(g) for which  Δ_rHº=491.1KJ/mol^-1and Δ_rSº=198.0 KJ/mol^-1is not feasible at 298 K. Temperature above which reaction will be feasible is?

Calculate the projection around z-axis forl = 2 and m_l = 2: 

The bond angle between two hybrid orbitals is 105°. The percentage s-character of hybrid orbital is between:    

When S in the form of S₈ is heated at 900 K, the initial pressure of 1 atm falls by 29% at equilibrium. This is because of conversion of S₈ to S₂. Find the value of equilibrium constant of this reaction.  

0.2 M NaOH is titrated with 0.2 M, 20 ml, HA (Monobasic acid) till the equivalence point reached degree of dissociation of HA is supposed to be legible. Calculate the pH of the resulting solution at the end point. [Given Ka = 1.8 × 10^–5]    

The compound formed is/are in the positive test for nitrogen with the Lassaigne extract of an organic compound:    

Determine enthalpy change (in kJ) for C₃H₈(g) +H₂ (g) →C₂H₆(g)+CH₄(g) at 25°C using heat of combustion value under standard conditions. Given: ΔH_formC₃H_8(g) = –103.8 kJ/mole.

Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se, and Ar?    

The reaction between [PdCl₄]^2– and C₂H₄ produces a new compound. Compared to free C₂H₄, the C—C bond order of the product is:    

Consider the following chemical reaction and choose the correct product:

Consider the following chemical reaction and choose the correct alternative:
; Final product is:

Consider the following chemical reaction and choose major product:

A ketone on treatment with bromine in methanol gives the corresponding Monobromo compound [X] having molecular formula C₅H₉BrO. The compound [X] when treated with Sodium methoxide in methanol produces [Y] as the major product, the 1H NMR spectrum data for compound [X] are: ¹H NMR:δ 1.17 (d, 6H), 3.02 (m, 1H), 4.10 (s, 2H). The compound X and Y, respectively, are:

The correct order of the rate constant for the following series of reaction  (Where Z = CF₃/CH₃/OCH₃) is:

Product (B) of the given reaction is:

Which one of the following statements is true?
1.   2.   
3.   4. 

    Van Arkel method of purification of metals involves converting the metal to:    

The adsorption of a gas is described by Langmuir Isotherm with equation constant, K = 0.5 K Pa^–1 at 25°C. The pressure (in PK) when translational reaction coverage is 0.25 is:    

A solution containing 4.5 mM of Cr₂O₇^2– and 15 mM of Cr³⁺ shows a pH of 2.0. Calculate the potential of half reaction. (E° of  Cr₂Cr₇^2-→Cr³⁺ is 1.33 V)