Reaction of metals with bases

Q. Metal oxides which react with both acids and bases to produce salt and water are known as:

1. amphoteric oxides
2. alkalis
3. metallic oxides
4. non-metals

Q.

Metal oxides which react with both acids as well as bases to produce salt and water are known as ___.

Q.

Metals generally react with oxygen to form:

1. Acidic oxides.

2. Basic Oxides.

3. Amphoteric Oxides.

4. Neutral Oxides.

Q.

Name two indicators which are used to test basic solution.

Q. Beaker A contains $CuS{O}_4$solution and zinc pieces. Beaker B contains $ZnS{O}_4$solution and copper pieces. Chemical reaction will take place in -

1. Both the beakers A and B
2. Beaker A
3. Beaker B
4. None of the beakers

Q.

Which alkaline earth metal is formed by the decay of uranium?

1. Radium

2. Barium

3. Strontium

4. Beryllium

Q. Metal oxides which react with both acids and bases to produce salt and water are known as:

1. non-metals
2. amphoteric oxides
3. alkalis
4. metallic oxides

Q. Beaker A contains $CuS{O}_4$solution and zinc pieces. Beaker B contains $ZnS{O}_4$solution and copper pieces. Chemical reaction will take place in -

1. Beaker A
2. None of the beakers
3. Beaker B
4. Both the beakers A and B

Q. The characteristic(s) observed during the reaction between iron sulphate and zinc is/are:

1. colour change
2. formation of a precipitate
3. absorption of heat
4. evolution of heat

Q. Beaker A contains $CuS{O}_4$solution and zinc pieces. Beaker B contains $ZnS{O}_4$solution and copper pieces. Chemical reaction will take place in -

1. Both the beakers A and B
2. Beaker A
3. Beaker B
4. None of the beakers

Q. Beaker A contains $CuS{O}_4$solution and zinc pieces. Beaker B contains $ZnS{O}_4$solution and copper pieces. Chemical reaction will take place in -

1. Both the beakers ‘A’ and ‘B’
2. Beaker ‘A’
3. Beaker ‘B’
4. In none of the beakers

Q. Which of the following element reacts with cold water vigorously?

1. Carbon
2. Sodium
3. Sulphur
4. Magnesium

Q. Which of the following product is formed when four moles of NO gas reacts with two moles of potassium hydroxide?

1. $KN{O}_3$
2. $NO$
3. $N_{2}O$
4. $HN{O}_2$

Q. Out of the following which one cannot be displaced by Mg?

1. Sodium ion
2. Silver ion
3. Ferrous ion
4. Zinc ion

Q.

Which alkaline earth metal is formed by the decay of uranium?

1. Radium

2. Barium

3. Strontium

4. Beryllium

Q. Metal oxides which react with both acids and bases to produce salt and water are known as:

1. non-metals
2. amphoteric oxides
3. alkalis
4. metallic oxides

Q. Out of the following which one cannot be displaced by Calcium?

1. Ferrous ion
2. Silver ion
3. Potassium ion
4. Zinc ion

Q. Beaker A contains $CuS{O}_4$solution and zinc pieces. Beaker B contains $ZnS{O}_4$solution and copper pieces. Chemical reaction will take place in -

1. Both the beakers A and B
2. Beaker A
3. Beaker B
4. None of the beakers

Q.

Red litmus turns blue when the solution is:

1. acidic.

2. basic.

3. amphoteric.

4. neutral.

Q.

Al₂O₃ is an amphoteric oxide

Q. Identify the amphoteric oxide.

1. Aluminium oxide
2. Magnesium oxide
3. Iron oxide
4. Copper oxide

Q.

Which of the substances is not likely to be a replaced by other minerals during fossilization?

1. Gold

2. Chalcopyrite

3. Quartz

4. Pyrite

Q. Out of the following which one can be displaced by Cu?

1. Zinc ion
2. Aluminium ion
3. Silver ion
4. Ferrous ion