Question

Q.Which of the following solutions has the same concentration of H+ ions as 0.1 N HCl?
{1} 0.1 NH2SO4
{2} 0.3 NH3PO4
{3} 0.2 NHNO3
{4} All Of These
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Answer 1

Answer:

0.1 NH2SO4 that's is answer

Answer 2

Given:

0.1N HCl.

To find:

The same concentration of hydrogen ion.

Solution:

HCl dissociate as-

$HCl\rightarrow H^++Cl^-$.

Thus, the concentration of 0.1N HCl is 0.1/1=0.1 mole of Hydrogen ion.

Sulfuric acid dissociates as-

$H_2SO_4\rightarrow 2H^++SO_4^{2-}$.

Thus, the concentration of 0.1N $H_2SO_4$ is 0.1/2=0.05 mole of Hydrogen ion.

Hydro phosphoric acid dissociates as-

$H_3PO_4\rightarrow 3H^++PO_4^{3-}$.

Thus, the concentration of 0.3N $H_3PO_4$ is 0.3/3=0.1 mole of Hydrogen ion.

Nitric acid dissociates as-

$HNO_3\rightarrow H^++NO_3^{-}$.

Thus, the concentration of 0.2N $HNO_3$ is 0.2/1=0.2 mole of Hydrogen ion.

Hence the correct option is 2.