Chapter 7. Group Properties of Group IIIA-IVB

Question 1

It is also known as goulard’s extract. (Tip: Pb)

Answer 1

lead sub acetate

Question 2

It is considered as the second most abundant element.

Answer 2

Si

Question 3

Toxicity of this substance is manifested by a boiled lobster appearance. (Tip: B)

Answer 3

H3BO3

Question 4

An important compound of carbon that is used in the removal of acne and warts.

Answer 4

CO2

Question 5

Component of gun metal.

Answer 5

10%Sn + 90% Cu

Question 6

group IV element that is used as a component of deodorants.

Answer 6

Zirconium

Question 7

An allotrope of carbon that is amorphous and composed of 90% carbon.

Answer 7

Anthracite

Question 8

n important compound of silicon that is incorporated in antacids as antifoaming agent.

Answer 8

Simethicone (also called “Polymeric dimethyl siloxane”)

Question 9

When a patient is poisoned with lead, what list of antidotes you can give?

Answer 9

Dimercaprol,
EDTA,
Succimer

Question 10

This element is used in photographic flash bulbs and is chemically similar to zirconium.

Answer 10

Hafnium