Which procedure cannot be performed on a hot plate, requiring a Bunsen burner instead

Heating a crucible to remove water from a hydrate.

Explanation:

The options are:

a. Heating a solvent to help a solute dissolve.

b. Heating an isolated solid to dry it.

c. Heating water to boiling for a water bath.

d. Heating a crucible to remove water from a hydrate.

The procedure that can be performed on a hot plate are:

a. Heating a solvent to help a solute dissolve.

b. Heating an isolated solid to dry it.

c. Heating water to boiling for a water bath.

It should be noted that the hot plate cannot be used for heating of crucible in order to remove water from a hydrate. It is not advisable for someone to heat any silica or ceramic objects on a hot plate.

Therefore, heating a crucible to remove water from a hydrate is the correct option.

A procedure that cannot be performed on a hot plate but on a Bunsen burner is d. Heating a crucible to remove water from a hydrate.

Crucibles need to be heated up to ensure accurate measurements as water could easily get absorbed and trapped in the material in the crucible.

When heating the crucible, it is not recommended to use a hot plate as it might break. It is best to use a Bunsen burner which would allow the crucible to be held as it is heated.

The other options are wrong because:

In conclusion, heating a crucible on a hot plate is not recommended.

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Options for this question include:

a. Heating a solvent to help a solute dissolve.  

b. Heating an isolated solid to dry it.  

c. Heating water to boiling for a water bath.  

d. Heating a crucible to remove water from a hydrate.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

the answer is 1 i believe