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Class 11

Chemistry

Environmental Chemistry

Air pollution

Air pollution that occurs in sunlight is

Question

Easy

Solving time: 2 mins

Air pollution that occurs in sunlight is

acid rain

oxidising smog

fog

reducing smog

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Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

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Text solutionVerified

In sunlight oxidising smog or photochemical smog or Los-Angeles smog is formed. This smog is brown in colour. It occurs in warm, dry and sunny climate. In presence of sunlight,

NO_{x}

(

N

-oxides),

O_{2}

and unburnt hydrocarbons of air

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Questions from JEE Mains 2019 - PYQs

Question 1

Medium

For emission line of atomic hydrogen from

n_{i} = 8

n_{f} = n

, the plot of wave number

(v)

against

(\frac{1}{n ^{2}})

will be (The Rydberg constant,

R_{H}

is in wave number unit)

non linear
linear with slope $- R_{H}$
linear with slope $R_{H}$
linear with intercept $- R_{H}$

Topic:

Structure of Atom

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 11 solutions

Question 2

Easy

The correct order of hydration enthalpies of alkali metal ions is

$Li^{+} > Na^{+} > K^{+} > Cs^{+} > Rb^{+}$
$Na^{+} > Li^{+} > K^{+} > Rb^{+} > Cs^{+}$
$Na^{+} > Li^{+} > K^{+} > Cs^{+} > Rb^{+}$
$Li^{+} > Na^{+} > K^{+} > Rb^{+} > Cs^{+}$

Topic:

The s-Block Elements

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 3 solutions

Question 3

Medium

Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?

Topic:

Structure of Atom

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 2 solutions

Question 4

Medium

In comparison to boron, beryllium has

lesser nuclear charge and lesser first ionisation enthalpy
greater nuclear charge and lesser first ionisation enthalpy
greater nuclear charge and greater first ionisation enthalpy
lesser nuclear charge and greater first ionisation enthalpy

Topic:

Classification of Elements and Periodicity in Properties

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 2 solutions

Practice questions from Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Question 1

Easy

The

pH

of rain water, is approximately

$7.5$
$6.5$
$5.6$
$7.0$

Topic:

Environmental Chemistry

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 2 solutions

Question 2

Easy

The concentration of dissolved oxygen (DO) in cold water can go upto

$14 ppm$
$10 ppm$
$8 ppm$
$16 ppm$

Topic:

Environmental Chemistry

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 2 solutions

Question 3

Easy

The noble gas that does not occur in the atmosphere is

$Ra$
$Kr$
$He$
$Ne$

Topic:

Environmental Chemistry

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 4 solutions

Question 4

Easy

The maximum prescribed concentration of copper in drinking water is

$5 ppm$
$0.5 ppm$
$0.05 ppm$
$3 ppm$

Topic:

Environmental Chemistry

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 2 solutions

Practice more questions from Environmental Chemistry

Question 1

Hard

Which of the following statements is NOT true ?

Fumes are generally obtained when herbicides and insecticides miss their targets & travel through air.
Fumes are generally obtained by the condensation of vapours during sublimation distillation, boiling and several other chemical reactions.
Generally organic solvents, metals & metallic oxides form fume particles.
Fumes are a type of non-viable particulate pollutant

Topic:

Environmental Chemistry

View 2 solutions

Question 2

Easy

What is % by volume occupied by

C O_{2}

in atmosphere ?

Less than 1%
1% - 2%
5%
5% - 10%

Topic:

Environmental Chemistry

View solution

Question 3

Medium

Which of the following statements is NOT true ?

Uncatalysed oxidation of $S O_{2}$ is very fast
The presence of particulate matter in polluted air catalyses the oxidation of $S O_{2}$ to $S O_{3}$
The conversion of $S O_{2}$ to $S O_{3}$ is also promoted by ozone
Uncatalysed oxidation of $S O_{2}$ is slow