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प्रश्न
Alkaline earth metal (A), belongs to 3rd period reacts with oxygen and nitrogen to form compound (B) and (C) respectively. It undergoes metal displacement reaction with AgNO3 solution to form compound (D). Identify A, B, C and D.
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उत्तर
Alkaline earth metal, 3rd → Magnesium (Mg) ……….(A)
\[\ce{2Mg + O2 -> 2MgO}\] …………(B)
\[\ce{3Mg + N2 -> Mg3N2}\] ..........(C)
\[\ce{Mg + 2AgNO3 -> 2Ag + Mg(NO3)2}\] ………….(D)
- A – Magnesium
- B – Magnesium oxide
- C – Magnesium nitride
- D – Magnesium
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संबंधित प्रश्न
Which of the following has the highest hydration energy
Assertion: Generally alkali and alkaline earth metals form superoxides.
Reason: There is a single bond between O and O in superoxides.
Assertion: BeSO4 is soluble in water while BaSO4 is not
Reason: Hydration energy decreases down the group from Be to Ba and lattice energy remains almost constant.
In context with beryllium, which one of the following statements is incorrect?
Discuss briefly the similarities between beryllium and aluminium.
Why alkaline earth metals are harder than alkali metals?
Identify the correct formula of halides of alkaline earth metals from the following.
(i) BaCl2.2H2O
(ii) BaCl2.4H2O
(iii) CaCl2.6H2O
(iv) SrCl2.4H2O
What is the structure of BeCl2 molecule in gaseous and solid state?
Assertion (A): Beryllium carbonate is kept in the atmosphere of carbon dioxide.
Reason (R): Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.
Given below are two statements:
Statement I: Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame.
Statement II: Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame.
In the light of the above statements, choose the most appropriate answer from the options given below.
