JEE Main 2021 (Online) 25th February Evening Shift | Chemical Kinetics and Nuclear Chemistry Question 66 | Chemistry

JEE Main 2021 (Online) 25th February Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements :

Statement I : The pH of rain water is normally $$-$$ 5.6.

Statement II : If the pH of rain water drops below 5.6, it is called acid rain.

In the light of the above statements, choose the correct answer from the options given below :

Both Statement I and Statement II are true.

Both Statement I and Statement II are false.

Statement I is true but Statement II is false.

Statement I is false but Statement II is true.

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

The value of K_C is 64 at 800 K for the reaction

N₂(g) + 3H₂(g) ⇌ 2NH₃(g)

The value of K_C for the following reaction is :

NH₃(g) ⇌ $${1 \over 2}$$N₂(g) + $${3 \over 2}$$H₂(g)

$${1 \over 8}$$

$${1 \over 4}$$

$${1 \over {64}}$$

JEE Main 2020 (Online) 6th September Morning Slot

MCQ (Single Correct Answer)

-1

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 JEE Main 2020 (Online) 6th September Morning Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 74 English

JEE Main 2020 (Online) 6th September Morning Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 74 English

Among the following, the correct sequence for the order of the reactions is :

d > b > a > c

d > a > b > c

a > b > c > d

c > a > b > d

JEE Main 2020 (Online) 5th September Evening Slot

MCQ (Single Correct Answer)

-1

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) JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 75 English