EASY
11th Mizoram Board
IMPORTANT
Earn 100

Describe the importance of the plaster of Paris.

Important Questions on The S-block Elements

MEDIUM
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.22
Why are lithium salts commonly hydrated and those of the other alkali ions usually anhydrous?
HARD
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.23
Why is LiF almost insoluble in water whereas LiCl soluble not only in water but also in acetone?
MEDIUM
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.24
Explain the significance of sodium, potassium, magnesium and calcium in biological fluids.
HARD
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.25
What happens when sodium metal is dropped in water? Sodium metal is heated in free supply of air? And sodium peroxide dissolves in water?
EASY
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.26
Comment on the mobilities of the alkali metal ions in aqueous solution are  Li+ < Na+< K+ < Rb+ < Cs+. 
MEDIUM
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.26
Comment on- Lithium is the only alkali metal to form a nitride directly. Why?
MEDIUM
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.26
Comment on  E⊖ for M2+  (aq)+2e  →M(s) where  (M=Ca, Sr or Ba) is nearly constant.
MEDIUM
11th Mizoram Board
IMPORTANT
Chemistry Part II Textbook for Class XI>Chapter 3 - The S-block Elements>EXERCISES>Q 10.27

State as to why- A solution of Na2CO3 is alkaline?