20.2—Methods of increasing the length of the carbon chain in a molecule by the use of magnesium to form Grignard reagents and

Understand methods of increasing the length of the carbon chain in a molecule by the use of magnesium to form Grignard reagents and the reactions of the latter with carbon dioxide and with carbonyl compounds in dry ether.

Use —methods of increasing the length of the carbon chain in a molecule by the use of magnesium to form grignard reagents and to connect the rule to the data and decision in the question.

This matters because —methods of increasing the length of the carbon chain in a molecule by the use of magnesium to form grignard reagents and determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —methods of increasing the length of the carbon chain in a molecule by the use of magnesium to form grignard reagents and to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Methods of increasing the length of the carbon chain in a molecule by the use of magnesium to form Grignard reagents and is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.