NDA2019General AbilityGeneral ScienceActual
Which one of the following metals does NOT react with cold water?
Options
- ACalcium (Ca)
- BPotassium (K)
- CMagnesium (Mg)
- DSodium ( Na )
Correct answer
C. Magnesium (Mg)
Step-by-step solution
Magnesium is a chemical element with the symbol Mg. Magnesium is the ninth most abundant element in the universe. Its use as a structural material is limited since it burns at relatively low temperatures. Magnesium is frequently alloyed with aluminum, which makes aluminum easier to roll, extrude and weld.