‘A’ burns in oxygen to form ‘B’ with lilac flame, ‘B’ dissolves in water to form ‘C’. ‘C’ reacts with an acid commonly c

Question

‘A’ burns in oxygen to form ‘B’ with lilac flame, ‘B’ dissolves in water to form ‘C’. ‘C’ reacts with an acid commonly called aquafortis to form ‘D’ and ‘E’. ‘D’ on heating decomposes to ‘F’ and O2. ‘D’ is an ionic compound which dissociates forming a positive ion other than hydrogen ion and negative ion other than hydroxyl ion. If ‘E’ changes anhydrous CuSO4 to blue. Identify A, B, C, D, F and their nature respectively.

Answer

Option 1

Na, Metal Na2O, Acidic NaOH, Basic NaNO3, Acidic  NaNO2, Neutral  

Option 2 Na, Metal NaO2, Basic NaOH, Acidic NaNO3, Basic  NaNO2, Neutral

Option 3 K, Metal K2O, Basic KOH, Basic KNO3, Neutral  KNO2, Neutral

Option 4 K, Metal KO2, Basic       KOH, Acidic KNO3, Basic  KNO2, Neutral