IIT JAM Chemistry - MCQ Test 3 - Chemistry MCQ

Overtones are observed in the vibrational spectra of diatomic molecules when:

The correct order of the fundamental vibrational frequency of the following diatomic molecules is:

The reaction of the bromo compound shown below with sodium ethoxide gives predominantly

The reaction of l-bromo-2-fluorobenzene with furan in the presence of one equivalent to Mg gives:

Correct absolute configuration is

The microwave spectrum of a molecule yields three rotational constants. The molecule is:

Electronegativity and Electron affinity of an element A are X and Y resp. Hence Ionisation potential is

Which of the following is the most stable conformer of the following molecule:

The increasing order of basicity among the following is :

The major product P is: 

The major product expected from the following reaction is?  

The population (N) distribution over states (n) of a diatomic molecular corresponds to:

Arrange the following in increasing order of K_a value:

Correct energy profile for amine inversion and hybridization of nitrogen in transition state is:

Resonance frequencies for EPR and NMR are respectively in the spectral region:

Compound A and B exist in

Consider the cell Cd(s)/Cd⁺²(1.0M)// C⁺²(1.0M)/Cu(s). if we wanted to make a cell with a more positive voltage using the same substances, we should:

The major product P is:

EMF of the following cell is 0.67 V at 298 K. Pt|H₂(latm) |H⁺(pH = X) || KCl (IN) | Hg₂Cl₂(s) | Hg Calculate the pH of anode compartment. Given 

Rate of formation of SO₃ in the following reaction

is 100g min^-1. Hence, rate of disappearance of O₂ is:

In the following sequence of pericyclic reactions X and Y are

Specifi heat of N₂ at constant pressure is 0.25 cal/g°C. Hence specific heat at constant volume is

Bridge-head hydrogen of the conform of cis-decalin is positioned as:

The resonance energy of anthracene (from the below data)

Given    which of the following statement is incorrect:

Weight of 14C have radioactivity 1 Curie (Disintegration constant is 4.4 × 10–12 sec-1 is ‘(in Kg)

In the reaction, P + Q → R + S the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is: