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Photochemical reactions



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Q1. In _____ reactions, molecules absorbing light do not themselves react but induce other molecules to react.

(a) Photosensitized
(b) Thermal
(c) Irreversible
(d) Dark

Q2. Medicine bottles are often made with darkened glass _______

(a) to prevent the drug from photodegradation
(b) to allow the photodegradation of drug
(c) to reduce the cost
(d) to allow oxidation of drug

Q3. Vision is initiated by a photochemical reaction of ______

(a) Rhodopsin
(b) Hydrogen Chloride
(c) Mercapton
(d) Enzymes

Q4. Mercaptans can be produced by photochemical addition of ______ to alpha olefins.

(a) hydrogen sulphide
(b) sulphur
(c) hydrogen
(d) paraffins

Q5. Which of the following are the principle laws of photochemistry?

(a) Grothus-Draper and Stark-Einstein law
(b) Raoult?s and Dalton?s law
(c) Raoult?s and Henry?s law
(d) Lambert?s and Beer?s law

Q6. Which of the following is an example of photochemical reaction?

(a) Photosynthesis
(b) Decomposition of ammonia
(c) Formation of NaOH
(d) Decomposition of HCl

Q7. Ozone is formed by ______ dissociation of molecular oxygen into individual oxygen atoms.

(a) photochemical
(b) thermochemical
(c) thermal
(d) ionic

Q8. In photochemical reactions, the presence of light is not required for the reaction to take place.

(a) true
(b) false
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q9. In photochemical reactions, absorption of _____ radiations takes place.

(a) ultraviolet and visible
(b) radio
(c) only visible
(d) visible and x-rays

Q10. The reactions which are caused by heat and in absence of light is called _____

(a) Photochemical reactions
(b) Dark reactions
(c) Reversible reaction
(d) Reversible photochemical reaction


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242 Year Ago

The Term (-dc/dt) In A Rate Equation Refer To The

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At The Rate Of Decomposition Of A Sample Of Gaseous

Modified 234 Year Ago

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At The Rate Of Decomposition Of A Sample Of Gaseous

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The Rate Of A Reaction Is Doubled For Every 10° C Rise In Temperature. The Increase In Reaction Rate As A Result Of Temperature Rise From 10°C To 100°C Is

Modified 242 Year Ago

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242 Year Ago

The Rate Of A Reaction Is Doubled For Every 10° C Rise In Temperature. The Increase In Reaction Rate As A Result Of Temperature Rise From 10°C To 100°C Is

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For A First Order Reaction The Ratio Of Times To Complete 99.9 Per. And Half Of The Reaction Is

Modified 6 Year Ago

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6 Year Ago

For A First Order Reaction The Ratio Of Times To Complete 99.9 Per. And Half Of The Reaction Is

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For A Reaction A + 2B -> C, Rate Is Given By

Modified 311 Year Ago

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311 Year Ago

For A Reaction A + 2B -> C, Rate Is Given By

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291 views

A First Order Reaction Is 60 Per Complete In 20 Min. How Long Will The Reaction Take To Be 84 Per Complete?

Modified 6 Year Ago

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6 Year Ago

A First Order Reaction Is 60 Per Complete In 20 Min. How Long Will The Reaction Take To Be 84 Per Complete?

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280 views

The Rate Of A Reaction That Not Involve Gases Is Not Dependent On

Modified 242 Year Ago

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242 Year Ago

The Rate Of A Reaction That Not Involve Gases Is Not Dependent On

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