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The S-Block Elements

Question
CBSEENCH11007121
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State as to why a solution of Na2CO3 is alkaline.

Solution
Na2CO3 is a salt of strong base (NaOH) and weak acid (H2CO3). When Na2CO3 is dissolved in water, it undergoes hydrolysis to produce strong base (NaOH) and weak acid (H2CO3). Hence its aqueous solution is alkaline in nature.
Na subscript 2 CO subscript 3 left parenthesis straight s right parenthesis space plus space straight H subscript 2 straight O left parenthesis straight l right parenthesis space rightwards arrow space space space stack 2 NaOH left parenthesis aq right parenthesis with Strong space base below space plus space stack straight H subscript 2 CO subscript 3 left parenthesis aq right parenthesis with Weak space acid below

Some More Questions From The s-Block Elements Chapter

Why are alkali metals not found in nature?

Lithium shows similarities to magnesium in the chemical behaviour. What is the cause of this similarity?

What is the nature of lithium compounds?

Group 1 elements are called alkali metals. Why?

Why caesium can be used in photoelectric cell while lithium can not be?

In aqueous solution, Li+ ion has lowest mobility. Why?

Lithium has highest ionisation energy in group 1 elements, yet it is strongest reducing agent. Comment.

The softness of group 1 elements increases down the group with increasing atomic number. Give reason. 

Which is the most reactive alkali metal and why?

Why alkali metals do not form M2+ ions?

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