Anima has two test tubes, one contains a solution of $H C l$ and the other one has a solution of $N a O H$ . Then –
a) i) Which solution has lesser concentration of $H^{+}$ ?
ii) Which solution will turn blue litmus red?
b) What happens when both the solution are mixed? Write a balanced equation of the reaction.

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Solution

a)

i) $N a O H$ is a base and $H C l$ is acid so $N a O H$ must have lesser concentration of $H^{+}$ .

ii) $H C l$ is an acid so it will turn blue litmus red.

b) $N a O H$ is a base and $H C l$ is an acid, so neutralization reaction will occur when they are mixed.

$N a O H (a q) + H C l (a q) - > N a C l (a q) + H_{2} O (l)$

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Anima has two test tubes, one contains a solution of HCl and the other one has a solution of NaOH. Then – a) i) Which solution has lesser concentration of H+? ii) Which solution will turn blue litmus red? b) What happens when both the solution are mixed? Write a balanced equation of the reaction.

a) i) NaOH is a base and HCl is acid so NaOH must have lesser concentration of H+. ii) HCl is an acid so it will turn blue litmus red. b) NaOH is a base and HCl is an acid, so neutralization reaction will occur when they are mixed. NaOH(aq)+HCl(aq)−>NaCl(aq)+H2O(l)