Combined and Native State

Q.

Highly reactive metals are naturally found in the stable elemental form.

1. True

2. False

Q. The ore from which mercury is extracted

Q.

Highly reactive metals are naturally found in the stable compound form.

1. Se < S < O

2. Se < O < S

Q.

Highly reactive metals are naturally found in stable compound form. True or False?

1. Se < S < O

2. Se < O < S

Q. What is the speciality of alkali metals??
what is the speciality of compounds made by them?
plss explain

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Q. are least likely anions to be found in minerals.

1. Carbonates
2. Sulphates
3. Nitrates
4. Sulphides

Q.

Which of the following metals largely exist in their combined state?

1. Au

2. Al

3. both a and c

4. Na

Q.

Calcium exists in the free state.

1. True

2. False

Q.

Gold exists in the free state.

1. True

2. False

Q.

Salts that are least likely to be found in minerals are:

1. Carbonates

2. Sulphides

3. Sulphates

4. Nitrates

Q.

A metal which is highly reactive can't exist in the native state.

1. True

2. False

Q.

What do you mean by the Free State?

1. Elements existing as elements but mixed with impurities

2. Elements in their compound form

3. Elements existing as gases

4. Elements existing in very pure and stable forms

Q. Which among the following metals exists in native state?

1. Gold
2. Magnesium
3. Aluminium
4. Iron

Q.

Which of the following metals largely exist in their combined state?

1. both a and c

2. Al

3. Au

4. Na

Q. are least likely anions to be found in minerals.

1. Carbonates
2. Sulphates
3. Nitrates
4. Sulphides

Q. Ores mined from earth are contaminated with large amount of impurities known as _______.

1. minerals
2. alloys
3. flux
4. gangue

Q. are least likely anions to be found in minerals.

1. Carbonates
2. Sulphates
3. Nitrates
4. Sulphides

Q.

Salts that are least likely to be found in minerals are:

1. Carbonates

2. Sulphates

3. Nitrates

4. Sulphides

Q. If you are given sodium metal how do you prove that it belongs to group 1 design an activity for the same​

Q.

Which of the following metals largely exist in their combined state?

1. Al

2. Au

3. Na

4. both a and c