Reaction of Metallic Oxides and Hydroxides with Acids

Q. When metal oxides or metal hydroxides react with ___, they form salt and water.

Q. Fill in the blank :
$MgO+HCl\to$__________

1. $Mg(OH{)}_2+H_{2}O+C{l}_2$
2. $MgC{l}_2+H_{2}O$
3. No reaction
4. None of these

Q.

Which colour change is observed when dilute $\text{HCl}$ is added to a beaker containing copper oxide?

1. Purple colour
2. Red colour
3. Blue-green colour
4. Orange colour

Q.

Acid + base $\to$ X + Y;

What is X and Y respectively?

1. +

2. Salt + ​

3. +

4. Salt +

Q.

Statement 1: Metal oxides are basic in nature.

Statement 2: Metal oxides neutralize the effect of acids and release water, similar to the reaction of a base with an acid.

1. Statement 1 is incorrect, but statement 2 is correct.

2. Both statements are correct and statement 2 is the correct reason for statement 1.

3. Statement 1 is correct, but statement 2 is incorrect.

4. Statement 1 and statement 2 are correct, but statement 2 is not the correct explanation for statement 1.

Q.

Metal oxides react with dilute acids to form salt and water.

1. False

2. True

Q.

$Cu(OH{)}_2+HCl\to X+Y$

What is X and Y respectively?

1. 

2. 

3. 

4. 

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

Q. $CuO+X\to CuS{O}_4+H_{2}O$. Here (X) is

1. $HCl$
2. $H_{2}S{O}_4$
3. $CuS{O}_4$
4. $HN{O}_3$

Q. Acids react with metal oxide to form _________________.

1. Base and water
2. Salt and water
3. Metal and salt
4. Base and salt