Name the gas produced on reaction of dilute sulphuric acid with a metallic sulphide.

The colour change observed when the solution of magnesium hydroxide is tested with the following indicators:

The gas liberated when sodium sulphite reacts with dilute sulphuric acid

The observation when ammonium chloride reacts with potassium hydroxide:

The colour of the precipitate formed when ferrous ions react with ammonium hydroxide solution:

The oxide of a metal that reacts both with acid and alkali to form salt and water:

The hydroxide which is soluble in excess ammonium hydroxide

The salt formed by partial replacement of hydrogen ion of an acid by a basic radical

Alkali which dissociates only partially in aqueous solution

Hydroxide of this metal is soluble in sodium hydroxide solution

The basicity of Acetic acid is

What happens when a solution of an acid is mixed with a solution of a base in a test tube?

(i) The temperature of the solution increases

(ii) The temperature of the solution decreases

(iii) The temperature of the solution remains the same

(iv) Salt formation takes place

The pH of a solution is 7. How can you increase its pH?

Solution A is sodium hydroxide solution. Solution B is weak acid. Solution C is dilute sulphuric acid. Which solution will give a white precipitate with zinc sulphate solution?

Which of the following gives the correct increasing order of acidic strength?

Increase in the OH^– ion concentration, leads to

Which of the following statements is correct about an aqueous solution of an acid and of a base?

(i) Higher the pH, stronger the acid

(ii) Higher the pH, weaker the acid

(iii) Lower the pH, stronger the base

(iv) Lower the pH, weaker the base

The pH of three solutions X, Y and Z is 6, 4 and 8 respectively. Which of the following is the correct order of acidic strength?

Which one of the following can be used as an acid-base indicator by a visually impaired student?

Which among the following is not a base?

Bee sting bite can be cured using

This is used for determining the acidic or alkaline or neutral character of a solution.

What do you observe when carbon dioxide is passed through lime water.

Acids which contain hydrogen and a non metallic element is called

Which of the following is a tribasic acid

This acid is used in food preservation

This acid is used as a ink-stain remover.

Out of ethanol and potassium hydroxide, which solution will conduct electricity?

i. Ethanol, because it’s a good conductor

ii. Potassium hydroxide, as it’s a good conductor

iii. Ethanol dissociates completely into ions

iv. Potassium hydroxide dissociates into ions

How will you obtain HCl gas from NaCl?

Which gas is released when Potassium carbonate is heated?

Which gas is released when Potassium nitrate is heated?

When a less volatile alkali reacts with ammonium salts, it forms a salt and a more volatile base. This reaction serves as a test for

This salt is formed by partial replacement of H atom in an acid molecule by a basic radical.

Na₂CO₃ + 2HNO₃ →2NaNO₃ + H₂O + CO₂. Is this reaction correct?

What is the colour of the pH paper when the substance has a pH value between 10-12?

Choose oxyacid from the following acids:

Hydrated copper sulphate on heating changes to

What is the colour of Methyl orange in acidic and alkaline solution?

Name the group of chemicals used to neutralise the excess acid in our stomach.