The gas 'A' is having|Environmental Chemistry|JEE MAINS 2021

Competishun Header

JEE MAIN 2021

27-08-21 S1

Question

The gas 'A' is having very low reactivity reaches to stratosphere. It is non–toxic and non–flammable but dissociated by UV—radiations in stratosphere. The intermediates formed initially from the gas 'A' are :

Select the correct option:

A

$\mathrm{Cl} \dot{\mathrm{O}}+\dot{\mathrm{C}} \mathrm{F}_2 \mathrm{Cl}$

B

$\mathrm{Cl} \dot{\mathrm{O}}+\dot{\mathrm{CH}}_3$

C

$\dot{\mathrm{C}} \mathrm{H}_3+\mathrm{CF}_2 \mathrm{Cl}$

D

$\dot{\mathrm{Cl}}+\mathrm{CF}_2 \mathrm{Cl}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

In stratosphere CFCs get broken down by powerful UV radiations releasing Cl*
$\mathrm{CF}_2 \mathrm{Cl}_2(\mathrm{~g}) \xrightarrow{\text { U.V. }} \mathrm{Cl}^*(\mathrm{~g})+{ }^* \mathrm{CF}_2 \mathrm{Cl}(\mathrm{g})$

Question Tags

JEE Main

Chemistry

Easy

Start Preparing for JEE with Competishun

Filters 0

Showing 18 questions

Q JEE MAIN 20262026

Given below are two statements
Statement I: $\mathrm{H}_2 \mathrm{O}$ molecules move from the chamber 1 to chamber 2 .
Statement II:...

JEE MainChemistryMedium

View Solution→

QJEE MAIN 20232023

A triangle is formed by $X$-axis, $Y$-axis and the line $3 x+4 y=60$. Then the number of points $P(a, b)$...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

$25 \%$ of the population are smokers. A smoker has 27 times more chances to develop lung cancer then a...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

If the shortest distance between the line joining the points $(1,2,3)$ and $(2,3,4)$, and the line $\frac{x-1}{2}=\frac{y+1}{-1}=\frac{z-2}{0}$ is $\alpha$, then...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

The remainder when $(2023)^{2023}$ is divided by 35 is $\_\_\_\_$ .

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

If $\int_{\frac{1}{3}}^3\left|\log _e x\right| d x=\frac{m}{n} \log _e\left(\frac{n^2}{e}\right)$, where $m$ and $n$ are coprime natural numbers, then $m^2+n^2-5$ is equal...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

If $m$ and $n$ respectively are the numbers of positive and negative value of $\theta$ in the interval $[-\pi, \pi]$...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

Suppose Anil's mother wants to give 5 whole fruits to Anil from a basket of 7 red apples, 5 white...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

Let $a \in R$ and let $\alpha, \beta$ be the roots of the equation $x^2+60^{1 / 4} x+a=0$. If $\alpha^4+\beta^4=-30$,...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

Points $\mathrm{P}(-3,2), \mathrm{Q}(9,10)$ and $\mathrm{R}(\alpha, 4)$ lie on a circle C with PR as its diameter. The tangents to C...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

For the two positive numbers $a, b$, if $a, b$ and $\frac{1}{18}$ are in a geometric progression, while $\frac{1}{a}, 10$...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

The foot of perpendicular of the point $(2,0,5)$ on the line $\frac{x+1}{2}=\frac{y-1}{5}=\frac{z+1}{-1}$ is $(\alpha, \beta, \gamma)$. Then. Which of the...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

Let $\vec{a}=-\hat{i}-\hat{j}+\hat{k}, \vec{a} \cdot \vec{b}=1$ and $\vec{a} \times \vec{b}=\hat{i}-\hat{j}$. Then $\vec{a}-6 \vec{b}$ is equal to

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

Let $T$ and $C$ respectively be the transverse and conjugate axes of the hyperbola $16 x^2-y^2+64 x+4 y+ 44=0$. Then...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

The integral $16 \int_1^2 \frac{\mathrm{dx}}{\mathrm{x}^3\left(\mathrm{x}^2+2\right)^2}$ is equal to

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

Let N be the sum of the numbers appeared when two fair dice are rolled and let the probability that...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

\text { The shortest distance between the lines } x+1=2 y=-12 z \text { and } x=y+2=6 z-6 \text {...

JEE MainMathematicsEasy

View Solution→

QJEE MAIN 20232023

\sum_{k=0}^6{ }^{51-k} \mathrm{C}_3 \text { is equal to }

JEE MainMathematicsEasy

View Solution→