Question

plzz give correct ans ​

Answer 1

Answer:

option 2 is incorrect

WHAT IS BASICITY?

basicity is defined as the number of replaceable H+ ions present in the acid .

NOTE:

acidity refers to the number of replaceable OH- ions present in base.

IMPORTANT POINT TO REMEMBER:

number of hydrogen present need not be equal to basicity. basicity is the number of replaceable hydrogen ions only

VERIFICATION:

OPTION 1

• phosphoric acid......H3PO4
• It has three replaceable H+ ions.
• so it's basicity is three

OPTION 2

• acetic acid....CH3COOH
• though it has 4 hydrogen atoms, the hydrogen attached to COO- part is alone replaceable.
• so it's basicity is 1 not 4.

OPTION 3

• hydroiodic acid....HI
• It has one replaceable hydrogen ion.
• it's basicity is 1

OPTION 4

• sulphuric acid......H2SO4
• it has two replaceable hydrogen ions
• it's basicity is 2

ANSWER:

option 2 is incorrect.

remaining are correct