Advertisements
Advertisements
प्रश्न
How will you obtain Magnesium oxide from magnesium.
Also give balanced equations for the reactions
Advertisements
उत्तर
Magnesium when burnt in air (oxygen) Magnesium oxide is formed
\[\ce{2Mg + O2->[heat] 2Mgo}\]
APPEARS IN
संबंधित प्रश्न
How will you obtain Zinc chloride from zinc.
Also give balanced equations for the reactions
Write chemical equation for the event.
Iron filings are dropped in aqueous solution of copper sulphate.
Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.
Explain the following reaction with the balanced equation.
Sodium burns in air
Observe the following diagram and identify the type of reaction and write observation.
A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH.
An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.
A solution of CuSO4 was kept in an iron pot. After few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.
Explain the following
- Reactivity of Al decreases if it is dipped in HNO3
- Carbon cannot reduce the oxides of Na or Mg
- NaCl is not a conductor of electricity in solid state whereas it does conduct electricity in aqueous solution as well as in molten state
- Iron articles are galvanised.
- Metals like Na, K, Ca and Mg are never found in their free state in nature.
An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.
