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hydogen Flashcards

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1
Q

What is the reagant used in clarks process

A

calcium hydroxide

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2
Q

What is calgons process used for ?

What is calgon the commercial name of ?

A

calgons process is used to remove permanent hardness of water
calgon is the commercicial name of sodium hexametaphosphate

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3
Q

name the methods to remove permanent hardness

A

calgons method
synthetic resin method
ion exchange using zeolite

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4
Q

state whether h2o2 acts as oxidising or reducing agent in acidic and basic medium

A

in acidic medium –acts as oxidising agent mostly but can also show reducing character
in basic medium it acts as reducing agent

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5
Q

the autooxidation of what reagant gives us H2O2 `

A

2 ethyl anthraquinol

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6
Q

what happens in merkels process

A

sodium peroxide (Na2O2) reacts with H2so4 to give H2o2 and Na2so4

actually any peroxide can be used

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7
Q

name 3 reagants barium peroxide can react with to form H2O2

A

H2CO3
BaO2 .8H2O CAN REACT WITH H2SO4
BaO2.H2SO4 can react with H3PO4 to form Ba3PO4

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chemistry (8 decks)

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