Intermediate First Year Chemistry>Chapter 10 - The p -Block Elements - Group 13>QUESTIONS>Q 35

MEDIUM

11th Telangana Board

IMPORTANT

Earn 100

${Al}_{2} O_{3}$ is amphoteric - explain with suitable examples.

Important Questions on The p -Block Elements - Group 13

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 10 - The p -Block Elements - Group 13>QUESTIONS>Q 36

${Na}_{2} B_{4} O_{7} + Conc . H_{2} {SO}_{4} \to A \to_{(ii) Ignite}^{(i) C_{2} H_{5} OH} B (Green edged flame)$

Identify $A$ and $B$

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 10 - The p -Block Elements - Group 13>QUESTIONS>Q 37

How are borax and boric acid prepared? Explain the action of heat on them.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 10 - The p -Block Elements - Group 13>QUESTIONS>Q 38

How is diborane prepared? Explain its structure.

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 10 - The p -Block Elements - Group 13>QUESTIONS>Q 39

Write any two methods of preparation of diborane. How does it react with carbon monoxide?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 10 - The p -Block Elements - Group 13>QUESTIONS>Q 39

Write any two methods of preparation of diborane. How does it react with Ammonia?