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11th Assam Board
IMPORTANT
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Give reason why graphite is used as a lubricant?

Important Questions on The p-Block Elements

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.22

Give reason why diamond is used as an abrasive?

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.22

Give reason why aluminium alloys are used to make aircraft body.

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.22

Give reason why aluminium utensils should not be kept in water overnight.

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.22

Give reason why: Aluminium wire is used to make transmission cables.

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.23

Explain why is there a phenomenal decrease in ionization enthalpy from carbon to silicon?

MEDIUM
11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.24

How would you explain the lower atomic radius of Ga as compared to Al?

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.25

What are allotropes? Sketch the structure of two allotropes of carbon namely diamond and graphite. What is the impact of structure on physical properties of two allotropes?

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11th Assam Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 4 - The p-Block Elements>EXERCISES>Q 11.26
Classify following oxides as neutral, acidic, basic or amphoteric: CO,B2O3,SiO2,CO2,Al2O3,PbO2,Tl2O3. Write suitable chemical equations to show their nature.