Tag: properties of acids and bases

$Zn[OH] _{2}$

ZnO

$ZnH _{2}$

$Na _{2}ZnO _{2}$

$\approx 1\times { 10 }^{ -10 }$

$\approx 1\times { 10 }^{ -9 }$

$\approx 3.33\times { 10 }^{ -9 }$

$\approx 3.33\times { 10 }^{ -10 }$

$1$ mole KOH

$4$ mole KOH

$2$ mole KOH

$1$ mole Ca(OH)$ _2$

turmeric to red

purple-cabbage juice to green

red litmus to blue

all of the above

acidic

basic

neutral

all of these 

$Al _2O _3+2NaOH\rightarrow2NaAlO _2+H _2O$

$Al _2O _3+2KOH\rightarrow2KAlO _2+H _2O$

$Al _2O _3+KOH\rightarrow KAlO _2+H _2O$

Both A and B

Acidic

Amphoteric

Basic

Neutral

$Zn+2NaOH\rightarrow Na _2ZnO _2+H _2$

$Zn+2KOH\rightarrow K _2ZnO _2+H _2$

$Pb+2KOH\rightarrow K _2PbO _2+H _2$

All of the above

$2Al+2NaOH+2H _2O\rightarrow2NaAlO _2+3H _2$

$2Al+2KOH+2H _2O\rightarrow2KAlO _2+3H _2$

$Al+NaOH+H _2O\rightarrow NaAlO _2+H _2$

Both A and B

$Pb+2NaOH\rightarrow Na _2PbO _2+H _2$

$Pb+NaOH\rightarrow2Na _2PbO _2+H _2$

$Pb+NaOH\rightarrow Na _2PbO _2+H _2$

$Pb+2NaOH\rightarrow2Na _2PbO _2+H _2$