Which among the following statements is incorrect for magnesium metal?

(A) It burns in oxygen with a dazzling white flame

(B) It reacts with cold water to form magnesium oxide and evolves hydrogen gas

(C) It reacts with hot water to form magnesium hydroxide and evolves hydrogen gas

(D) It reacts with steam to form magnesium hydroxide and evolves hydrogen gas

 

Answer

  • Magnesium metal burns in oxygen with a dazzling white flame.

                                  

  • It does not react with cold water but reacts with hot water to form magnesium hydroxide and hydrogen gas is released.

          

  • Magnesium can also react with steam to give magnesium hydroxide and hydrogen gas. 


So, the correct answer is (b) it reacts with cold water to form magnesium oxide and evolves hydrogen gas.

  1. Class 10
  2. Chapter 3 Class 10 - Metals and Non-Metals (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo