Which among the following statements is incor | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Magnesium $(Mg)$ is a moderately reactive metal.$1$. It burns in oxygen with a dazzling white flame to form magnesium oxide $(2Mg + O_2 \rightarro

Vedclass · Accepted Answer

It reacts with cold water to form magnesium oxide and evolves hydrogen gas.

Vedclass · Answer

(C) Magnesium $(Mg)$ is a moderately reactive metal.$1$. It burns in oxygen with a dazzling white flame to form magnesium oxide $(2Mg + O_2 ightarrow 2MgO)$. This statement is correct.$2$. Magnesium does not react with cold water. It reacts with hot water to form magnesium hydroxide and hydrogen gas $(Mg + 2H_2O 	ext{ (hot)} ightarrow Mg(OH)_2 + H_2)$. This makes option $C$ incorrect because it claims reaction with cold water.$3$. Magnesium reacts with steam to form magnesium oxide and hydrogen gas $(Mg + H_2O 	ext{ (steam)} ightarrow MgO + H_2)$. Note: Option $D$ is also technically incorrect as it states magnesium hydroxide is formed with steam, but option $C$ is the most fundamentally incorrect statement regarding cold water reactivity.

Which among the following statements is incorrect for magnesium metal?

Similar Questions

An alkali metal $A$ gives a compound $B$ (molecular mass $= 40$) on reacting with water. The compound $B$ gives a soluble compound $C$ on treatment with aluminium oxide. Identify $A$,$B$ and $C$ and give the reaction involved.

Which of the following metals reacts with sodium hydroxide to produce a salt and $H_2$ gas?

Which of the following elements does not lose an electron easily?

Write the names and symbols of the constituents present in the following alloys:
$(a)$ Brass
$(b)$ Bronze
$(c)$ Solder

An aluminium can was used to store ferrous sulphate solution. It is observed that in a few days,holes appeared in the can. Explain the observation and write the chemical equation to support your answer.

Vedclass Test Series

Exam Paper Generator

Online Exam Module