Neutralisation Reaction

Q.

Following reaction is an example of which type of reaction: NaCl + AgNO₃ gives AgCl + NaNO₃?

Q.

What happens when sodium hydroxide reacts with sulphuric acid?

Q.

What is a neutralisation reaction ? Explain with an example. Give the chemical equation of the reaction which takes place.

Q.

How is the concentration of hydronium ions $\left({\mathrm{H}}_3{\mathrm{O}}^{+}\right)$affected when a solution of an acid is diluted?

Q.

What is the function of HCl in stomach?

Q.

In the equation, $\mathrm{NaOH}+{\mathrm{HNO}}_3\to {\mathrm{NaNO}}_3+{\mathrm{H}}_2\mathrm{O}$ nitric acid is acting as

1. an oxidizing agent

2. an acid

3. a reducing agent

4. a dehydrating agent

Q.

What happens in an acid-base reaction?

Q.

When sodium chloride reacts with sulfuric acid, a gas is evolved which gives dense white fumes with ammonia. Which gas is evolved?

1. $\mathrm{HCl}$

2. ${\mathrm{NH}}_4\mathrm{Cl}$

3. ${\mathrm{NH}}_4\mathrm{OH}$

4. ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{SO}}_4$)

Q.

Write two examples of each of the following:

(i) Acidic salts

Q.

How do we dilute concentrated Hydrochloric acid to give $10\%\mathrm{HCl}$?

Q.

The reaction, $2{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}+2\mathrm{Na}\to 2{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{ONa}+{\mathrm{H}}_2$ suggests that ethanol is

1. Acidic in nature

2. Basic in nature

3. Amphoteric in nature

4. Neutral in nature

Q. Write an equation for the reactions of hydrochloric acid on :​ (e) manganese (IV) oxide

Q.

Magnesium chloride is an ionic compound while hydrogen chloride is a covalent compound. But both form ions in their aqueous solutions. Explain

Q.

What is meant by the term “Dibasic acid”?

Q.

The highest pH value is of

1. 0.1 M $\mathrm{NaCl}$

2. 0.1 M ${\mathrm{NH}}_4\mathrm{Cl}$

3. 0.1 M ${\mathrm{CH}}_3\mathrm{COONa}$

4. 0.1 M ${\mathrm{CH}}_3{\mathrm{COONH}}_4$

Q.

What is neutral salt? Give an example of the same.

Q.

Gas liberated when manganese dioxide reacts with hydrochloric acid

1. Oxygen

2. Hydrogen

3. Chlorine

4. Hydrogen chloride

Q.

Give two examples of each of a base and an alkali.

Q.

The pH of 0.1 M solution of the following salts increases in order

1. $\mathrm{NaCl}$ < ${\mathrm{NH}}_4\mathrm{Cl}$ < $\mathrm{NaCN}$ < $\mathrm{HCl}$

2. $\mathrm{NaCN}$ < ${\mathrm{NH}}_4\mathrm{Cl}$ < $\mathrm{NaCl}$ < $\mathrm{HCl}$

3. $\mathrm{HCl}$ < $\mathrm{NaCl}$ < $\mathrm{NaCN}$ < ${\mathrm{NH}}_4\mathrm{Cl}$

4. $\mathrm{HCl}$ < ${\mathrm{NH}}_4\mathrm{Cl}$ < $\mathrm{NaCl}$ < $\mathrm{NaCN}$

Q.

Which one of the following will turn red litmus blue?

1. Vinegar

2. Baking soda solution

3. Lemon juice

4. Soft drinks

Q.

When acid or base reacts to form neutral salt solution, the reaction is called ……..

Q.

Concentrated sulphuric acid is a strong oxidising agent and a dehydrating agent, but not in its dilute form. Explain.

Q.

Name the products formed when Sulphuric acid reacts with:

(a) Copper hydroxide.

(b) Magnesium carbonate.

(c) Potassium bicarbonate.

Q.

The pH of an aqueous solution of sodium acetate is

1. more than 7.

2. less than 7.

3. equal to 7.

4. more than 10.

Q. Name the gas which produces dense white fumes with ammonia gas.

Q. What happens when magnesium reacts with dilute HCl?

Q.

When ferrous hydroxide reacts with hydrochloric acid, ____ and ${\mathrm{H}}_2\mathrm{O}$ are produced.

1. ${\mathrm{FeCl}}_3$

2. ${\mathrm{FeCl}}_2$

3. ${\mathrm{FeCl}}_4$

4. $\mathrm{FeCl}$

Q.

The aqueous solution of which salt NaCl or NH₄Cl will have high pH?

Q.

Give equations of the reaction between hydrochloric acid and

(a) sodium oxide

Q.

explain how antacid works