Reaction of Acids with Metallic Oxides

Q. A strip of magnesium is burnt in air and the product obtained is allowed to react with sulphuric acid. Which of the following ions are present in the final salt obtained?

1. ${\text{Mg}}^{2+}$ and ${\text{SO}}_3^{2-}$
2. ${\text{H}}^{+}$ and ${\text{SO}}_3^{2-}$
3. ${\text{Mg}}^{2+}$ and ${\text{SO}}_4^{2-}$
4. ${\text{Mg}}^{+}$ and ${\text{SO}}_4^{2-}$

Q. Identify X in the following reaction.
X+ Acid $\to$ Salt + Water

1. Metal oxide
2. Metal carbonates
3. Metals
4. Metal hydrogen carbonates

Q.

Acid reacts with metal oxide to form _______.

1. Salt and hydrogen

2. Base and water

3. Metal and salt

4. Salt and water

Q. Acids react with to give salt and water.

1. metal carbonates
2. non-metal oxides
3. metal oxides

Q.

Which of the following reaction produces a base?

1. Burning of metal in air

2. Adding water to a metal oxide.

3. Heating metal carbonates

4. Reaction between an acid and base

Q.

Analyze the reaction given below and identify the salt formed.
$\text{FeO (aq) + HCl (aq)}\to {\text{Salt + H}}_2\text{O (l)}$

1. ${\text{FeCl}}_2$
2. ${\text{Fe}}_2{\text{O}}_3$
3. ${\text{FeSO}}_4$
4. $\text{FeO}$

Q. Choose the products that are formed when magnesium oxide reacts with hydrochloric acid.

1. Magnesium chloride and carbon dioxide
2. Magnesium hydroxide and oxygen
3. Magnesium chloride and water
4. Magnesium hydroxide and water

Q. Aqueous solution of a metal oxide will change the colour of litmus paper from ___ to ____.

1. Red, Blue
2. Red, Red
3. Red, Pink
4. Blue, Red

Q. Identify X in the following reaction.
X+ Acid $\to$ Salt + Water

1. Metal oxide
2. Metal carbonates
3. Metals
4. Metal hydrogen carbonates

Q. Acids react with to give salt and water.

1. metals
2. non-metal oxides
3. metal oxides