Potassium nitrate has pH value equal to ______________.

Academic Chemistry NCERT Class 10

Potassium nitrate has pH value equal to seven.

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Updated on: 10-Oct-2022

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Two drinks P and Q gave acidic and alkaline reactions, respectively. One has a pH value of 9 and the other has a pH value of 3. Which drink has the pH value of 9?
Identify the type of reaction taking place in the following cases and write the balanced equation for the reaction(a) Potassium iodide reacts with lead nitrate to produce potassium nitrate and lead iodide(b) Zn reacts with silver nitrate to produce zinc nitrate and silver
Identify the type of reactions taking place in each of the following cases and write the balanced chemical equation for the reactions.(a) Zinc reacts with silver nitrate to produce zinc nitrate and silver.(b) Potassium iodide reacts with lead nitrate to produce potassium nitrate and lead iodide.
Fresh milk has a pH of 6. When it changes into curd (yogurt), will its pH value increase or decrease? Why?
You are given the solution of lead nitrate. In order to obtain a yellow precipitate you should mix with it a solution of:(a) potassium chloride (b) potassium nitride (c) potassium sulphide (d) potassium iodide
As Fresh milk has a pH of 6, when it changes into curd (Yoghurt), will its pH value increases or decreases? Why?
What colour will universal indicator show if you add it to the following substances?(a) Potassium hydroxide, pH = 12 (b) Soda water, pH = 5(c) Sulphuric acid, pH = 2
How can we find pH value?
Give one example each of a salt which gives an aqueous solution having :(a) pH less than 7 (b) pH equal to 7 (c) pH more than 7
Write the balanced chemical equations for the following reactions :(a) Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water(b) Zinc + Silver nitrate → Zinc nitrate + Silver(c) Aluminium + Copper chloride → Aluminium chloride + Copper(d) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride
A solution has pH value of 5. On adding 10 mL of NaCl to it, what will be the pH of the new solution?(a) More than 5(b) Less than 5(c) Only seven(d) No change in pH
When potassium nitrate is heated , it decomposes into potassium nitrite and oxygen. Write a balanced equation for this reaction and add the state symbols of the reactants and products.
Barium Nitrate
Calcium Nitrate
Fresh milk has a pH of 6. How do you think the pH will change as it turns into curd? Explain.

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