1.

Use of any 2 elements of group 1 and 2

Answer»

Answer:

Hydrogen from group 1A

Use:Welding.

Sodium from group 1A

Use:Sodium is used as a HEAT EXCHANGER in some nuclear reactors.

Calcium from group2A

Use:Calcium is used for treatment and prevention of low calcium levels and resulting bone CONDITIONS including osteoporosis.

Magnesium from group 2A

Use:Magnesium is used in PRODUCTS that benefit from being lightweight.

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