The decreasing order of reactivity towards dehydrohalogenation (E1) reaction of the following compounds is :

Consider the following reactions : Which of these reactions are possible ?

1- methyl ethylene oxide when treated with an excess of HBr produces :

Consider the reaction sequence given below: Which of the following statements is true?

Consider the following reactions A $$\to$$ P1 ; B $$\to$$ P2 ; C $$\to$$ P3 ; D $$\to$$ P4, The order of the above reactions are a, b, c, and d, respectively. The following graph is obtained when log[rate] vs. log[conc.] are plotted Among the following, the correct sequence for the order of the reactions is :

The rate constant (k) of a reaction is measured at differenct temperatures (T), and the data are plotted in the given figure. The activation energy of the reaction in kJ mol–1 is : (R is gas constant)

A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives for A and B are 300 s and 180 s, respectively. If the concentrations of A and B are equal initially, the time required for the concentration of A to be four times that of B(in s) : (Use ln 2 = 0.693)

For the reaction 2A + 3B + {3 \over 2}C $$\to$$ 3P, which statement is correct ?

The results given in the below table were obtained during kinetic studies of the following reaction 2A + B $$\to$$ C + D X and Y in the given table are respectively :

For the following reactions $$A\text{buildrel}700K\frac{⟶}{\mathrm{Product}}$$ $$A\underset{catalyst}{\overset{500K}{⟶}}\mathrm{Product}$$ it was found that Ea is decreased by 30 kJ/mol in the presence of catalyst. If the rate remains unchanged, the activation energy for catalysed reaction is (Assume pre exponential factor is same):

Consider the following plots of rate constant versus {1 \over T} for four different reactions. Which of the following orders is correct for the activation energies of these reactions?

The rate of a certain biochemical reaction at physiological temperature (T) occurs 106 times faster with enzyme than without. The change in the activation energy upon adding enzyme is :

For the reaction 2H2(g) + 2NO(g) $$\to$$ N2(g) + 2H2O(g) the observed rate expression is, rate = Kf[NO]2[H2]. The rate expression for the reverse reaction is :

It is true that :

An ionic micelle is formed on the addition of :

Kraft temperature is the temperature :

Adsorption of a gas follows Freundlich adsorption isotherm. If x is the mass of the gas adsorbed on mass m of the adsorbent, the correct plot of {x \over m} versus p is :

Identify the correct molecular picture showing that happens at the critical micellar concentration (CMC) of an aqueous solution of a surfactant ( ◍ polar head; ∼ non-polar tail; ● water).

A sample of red ink (a colloidal suspension) is prepared by mixing eosin dye, egg white, HCHO and water. The component which ensures stability of the ink sample is :

Match the following : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} (i) Foam (a) smoke (ii) Gel (b) cell fluid (iii) Aerosol (c) jellies (iv) Emulsion (d) rubber (e) froth (f) Milk