Question

# (a) Mention conjugate base of each of the following:$$H{ S }^{ - },{ H }_{ 3 }{ O }^{ + },{ H }_{ 2 }{ PO }_{ 4 }^{ - },H{ SO }_{ 4 }^{ - },HF,{ CH }_{ 3 }COOH,{ C }_{ 6 }{ H }_{ 5 }OH,HCl{ O }_{ 4 },{ NH }_{ 4 }^{ + }$$(b) Mention the conjugate acid of each of the following:$${ OH }^{ - },{ CH }_{ 3 }CO{ O }^{ - },{ Cl }^{ - },{ CO }_{ 3 }^{ 2- },{ H }_{ 2 }{ PO }_{ 4 }^{ - },{ CH }_{ 3 }{ NH }_{ 2 },{ CH }_{ 3 }COOH,{ NH }_{ 2 }^{ - }\quad$$(c) Which of the following behave both as Bronsted acids as well as Bronsted bases?$${ H }_{ 2 }O,H{ CO }_{ 3 }^{ - },{ H }_{ 2 }{ SO }_{ 4 },{ H }_{ 3 }{ PO }_{ 4 },H{ S }^{ - },{ NH }_{ 3 }\quad$$(d) Which is stronger acid in each of the following pairs?$$HCl,HI;{ H }_{ 2 }{ CO }_{ 3 },{ H }_{ 2 }{ SO }_{ 4 };{ H }_{ 2 }O,{ H }_{ 2 }S;{ C }_{ 2 }{ H }_{ 5 }OH, C_6H_5OH$$(e) Which is stronger base in each of the following pairs?$${ OH }^{ - },{ Cl }^{ - };{ OH }^{ - },{ NH }_{ 2 }^{ - };{ OH }^{ - },{ CH }_{ 3 }CO{ O }^{ - };{ CH }_{ 3 }CO{ O }^{ - },{ Cl }^{ - };{ NH }_{ 3 },{ CH }_{ 3 }{ NH }_{ 2 }$$(f) Classify the following into acids and bases according to Lewis concept:$${ S }^{ 2- },{ H }^{ + },{ OH }^{ - },B{ F }_{ 3 },{ Ni }^{ 2+ },N{ F }_{ 3 },Al{ Cl }_{ 3 },Sn{ Cl }_{ 4 },{ NH }_{ 3 },{ ({ CH }_{ 3 }) }_{ 2 }O$$

Solution

## (a) $${ S }^{ 2- },{ H }_{ 2 }O,H{ PO }_{ 4 }^{ - },{ SO }_{ 4 }^{ - },{ F }^{ - },{ CH }_{ 3 }CO{ O }^{ - },{ C }_{ 6 }{ H }_{ 5 }{ O }^{ - },Cl{ O }_{ 4 }^{ - },{ NH }_{ 3 }\quad$$(b) $${ H }_{ 2 }O,{ CH }_{ 3 }COOH,HCl,H{ CO }_{ 3 }^{ - },{ H }_{ 3 }{ PO }_{ 4 },{ CH }_{ 3 }{ NH }_{ 3 }^{ + },{ CH }_{ 3 }COO{ H }_{ 2 }^{ + },{ NH }_{ 3 }\quad$$(c) $${ H }_{ 2 }O,H{ CO }_{ 3 }^-;H{ S }^{ - }$$ and $${ NH }_{ 3 }$$ behave both as acids and bases.(d) $$HI>HCl;{ H }_{ 2 }{ SO }_{ 4 }>{ H }_{ 2 }{ CO }_{ 3 };{ H }_{ 2 }S>{ H }_{ 2 }O;{ C }_{ 6 }{ H }_{ 5 }OH>{ C }_{ 2 }{ H }_{ 5 }OH$$(e) $${ OH }^{ - }>Cl^-;{ NH }_{ 2 }^{ - }>{ OH }^{ - };{ OH }^{ - }>{ CH }_{ 3 }CO{ O }^{ - };{ CH }_{ 3 }CO{ O }^{ - }>{ Cl }^{ - };{ CH }_{ 3 }{ NH }_{ 2 }>{ NH }_{ 3 }$$(f) Lewis acids are : $${ H }^{ + },B{ F }_{ 3 },{ Ni }^{ 2+ },Al{ Cl }_{ 3 },Sn{ Cl }_{ 4 }\quad$$    Lewis bases are : $${ S }^{ 2- },{ OH }^{ - },N{ F }_{ 3 },{ NH }_{ 3 },{ ({ CH }_{ 3 }) }_{ 2 }O\quad$$Chemistry

Suggest Corrections

0

Similar questions
View More

People also searched for
View More