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Poisonous Properties of Arsenic

Created by

@DiplomaticHolmium

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Questions and Answers

What is the characteristic of arsenic in its metal form?

It is a sulphide compound

It is soluble in water

It is insoluble in water (correct)

It is tasteless

Which of the following compounds of arsenic is tasteless?

Arsenious oxide (correct)

Arsenates of Pb

Sulphides of Arsenic

Copper arsenite

Which compounds of arsenic are sulphides?

As2S3 and As2S2 (correct)

Copper arsenite and copper acetoarsenite

Arsenious oxide and arsenates of Pb

Arsenates of Pb and arsenites of Na & K

What is the term used to describe arsenic?

The King of Poison Signup and view all the answers

Which of the following compounds of arsenic are copper compounds?

Copper arsenite and copper acetoarsenite Signup and view all the answers

What is the smallest dose of arsenic that can cause death?

100 mg Signup and view all the answers

What is the time period for the fatal effects of arsenic in its narcotic form?

2-3 hrs Signup and view all the answers

How is the patient treated after arsenic poisoning?

Removing the patient from further exposure and stomach washing Signup and view all the answers

What is the antidote used to treat arsenic poisoning?

Freshly prepared FeCl3 Signup and view all the answers

What is the duration of administration of the antidote in water?

2-3 days Signup and view all the answers

Study Notes

Arsenic

Metal arsenic is non-poisonous and insoluble in water (H2O)

Forms of Arsenic

Arsenious oxide (As2O3): tasteless, very poisonous
Sulphides of Arsenic: As2S3, As2S2

Compounds of Arsenic

Copper compounds: Copper arsenite, Copper acetoarsenite
Other compounds: Arsenate of Pb, arsenites of Na & K

Arsenic Poisoning

Fatal dose of arsenic: 120-200 mg
Minimum lethal dose: 100 mg
Time frame for fatality:
- 2-3 hours when ingested in narcotic form
- 12-24 hours when ingested in gastrointestinal (GI) form

Treatment for Arsenic Poisoning

Immediate removal of patient from further exposure
Stomach lavage with warm water (repeated washing)
Administration of an antidote: freshly prepared FeCl3 (ferric chloride)
Antidote reaction: forms ferric arsenite (a harmless salt)
Dosage: 1 tablespoon of antidote in water for 2-3 days

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Description

This quiz covers the different forms of arsenic, including its metal and compound forms, and their poisonous properties. Learn about the sources of arsenic, including arsenious oxide and copper compounds.