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The possibility of photochemical smog formation will be minimum at

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Important Questions on The p-Block Elements

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Some reactions of NO2 relevant to photochemical smog formation are

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Identify A,B,X and Y

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It is because of the inability of ns2 electrons of the valence shell to participate in bonding that
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Match List-I with Match List-II

  List-I
(Metal)
  List-II
(Application)
(A) Cs (I) High temperature thermometer
(B) Ga (II) Water repellent sprays
(C) B (III) Photoelectric cells
(D) Si (V) Bullet proof vest

Choose the most appropriate answer from the options given below

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Given below are two Statements :

Statement I : Classical smog occurs in cool humid climate. It is a reducing mixture of smoke, fog and sulphur dioxide.

Statement II : Photochemical smog has components, ozone, nitric oxide, acrolein, formaldehyde, PAN etc.

In the light of the above statements, choose the most appropriate answer from the options given below.

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Which of the following is not a d-block element?
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The possibility of photochemical smog formation is more at
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On heating, LiNO3 gives how many compounds among the following?
Li2O,N2,O2,LiNO2,NO2
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Correct statement about photo-chemical smog is
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The primary precursor of photochemical smog that can be metabolised by plants such as Juniparus and Pyrus, is
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The number of non-ionisable protons present in the product B obtained from the following reaction is___C2H5OH+PCl3C2H5Cl+A

A+PCl3B

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Which among the following has the highest concentration of PAN?
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Reaction of BeO with ammonia and hydrogen fluoride gives 'A' which on thermal decomposition gives BeF2 and NH4F. What is 'A' ?

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Match List I with List II.

List I List II
A. Reverberatory furnace I. Pig iron
B. Electrolytic cell II. Aluminium
C. Blast furnace III. Silicon
D. Zone refining furnace IV. Copper
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Which hydride among the following is less stable?
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The delicate balance of CO2 and O2 is NOT disturbed by
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Formation of photochemical smog involves the following reaction in which A,B and C are respectively.

(i) NO2huA+B

(ii) B+O2C

(iii) A+CNO2+O2

Choose the correct answer from the options given below:

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Which of the following species is not involved in the formation of photochemical smog?

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A) : Photochemical smog causes cracking of rubber.
Reason (R): Presence of ozone, nitric oxide, acrolein, formaldehyde and peroxyacetyl nitrate in photochemical smog makes it oxidizing.
Choose the most appropriate answer from the options given below :